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Viraf J. Dalal solutions for Class 9 Simplified ICSE Chemistry chapter 1 - The Language Of Chemistry [Latest edition]

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Class 9 Simplified ICSE Chemistry - Shaalaa.com

Chapter 1: The Language Of Chemistry

ExerciseAdditional QuestionsThe Language Of Chemistry

Exercise

Viraf J. Dalal solutions for Class 9 Simplified ICSE Chemistry Chapter 1 The Language Of Chemistry Exercise

Exercise | Q 1

XCl2 is the chloride of a metal X. State the formula of the sulphate and the hydroxide of the metal X.

Exercise | Q 1

An element X is trivalent. Write the balanced equation for the combustion of X in oxygen.

Exercise | Q 1

The formula of the nitride of a metal X is XN, state the formula of :

  1. its sulphate
  2. its hydroxide.
Exercise | Q 1

What is the valency of nitrogen in :

  1. NO
  2. N2O
  3. NO2
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Additional Questions

Viraf J. Dalal solutions for Class 9 Simplified ICSE Chemistry Chapter 1 The Language Of Chemistry Additional Questions

Additional Questions | Q 1.1

What is meant by the term ‘symbol’?

Additional Questions | Q 1.2

Give the qualitative and quantitative meaning of the term ‘symbol’.

Additional Questions | Q 2.1

Name three metals whose symbols are derived from: the first letter of the name of the element

Additional Questions | Q 2.2

Name three metals whose symbols are derived: from their Latin names.

Additional Questions | Q 3.1

Explain the meaning of the term ‘valency’.

Additional Questions | Q 3.2

State why the valency of the metal potassium is +1 and of the non-metal chlorine is -1.

Additional Questions | Q 4

What is meant by the term ‘variable valency’. Give a reason why silver exhibits a valency of +1 and +2.

Additional Questions | Q 5.1

Give examples of eight metals that show variable valency.

Additional Questions | Q 5.2

State the valency of sulphur in :

(a) SO2
(b) SO3

Additional Questions | Q 6.01

State the valency of the element or radical given below

K

Additional Questions | Q 6.01

State the name of the element or radical given below

K

Additional Questions | Q 6.02

State the valency of the element or radical given below

Cr2O7

Additional Questions | Q 6.02

State the name of the element or radical given below

Cr2O7

Additional Questions | Q 6.03

State the valency of the element or radical given below

Cl

Additional Questions | Q 6.03

State the name of the element or radical given below

Cl

Additional Questions | Q 6.03

State the name of the element or radical given below

Cl

Additional Questions | Q 6.04

State the valency of the element or radical given below

Ni

Additional Questions | Q 6.04

State the name of the element or radical given below

Ni

Additional Questions | Q 6.05

State the valency of the element or radical given below

ClO3

Additional Questions | Q 6.05

State the name of the element or radical given below

ClO3

Additional Questions | Q 6.06

State the valency of the element or radical given below

CO3

Additional Questions | Q 6.06

State the name of the element or radical given below

CO3

Additional Questions | Q 6.07

State the valency of the element or radical given below

Ba

Additional Questions | Q 6.07

State the name of the element or radical given below

Ba

Additional Questions | Q 6.08

State the valency of the element or radical given below

HCO3

Additional Questions | Q 6.08

State the name of the element or radical given below

HCO3

Additional Questions | Q 6.09

State the valency of the element or radical given below

NO2

Additional Questions | Q 6.09

State the name of the element or radical given below

NO2

Additional Questions | Q 6.1

State the valency of the element or radical given below

Na

Additional Questions | Q 6.1

State the name of the element or radical given below

Na

Additional Questions | Q 6.11

State the valency of the element or radical given below

Br

Additional Questions | Q 6.11

State the name of the element or radical given below

Br

Additional Questions | Q 6.12

State the valency of the element or radical given below

Zn

Additional Questions | Q 6.12

State the name of the element or radical given below

Zn

Additional Questions | Q 6.13

State the valency of the element or radical given below

Mg

Additional Questions | Q 6.13

State the name of the element or radical given below

Mg

Additional Questions | Q 6.14

State the valency of the element or radical given below

O

Additional Questions | Q 6.14

State the name of the element or radical given below

O

Additional Questions | Q 6.15

State the valency of the element or radical given below

Co

Additional Questions | Q 6.15

State the name of the element or radical given below

Co

Additional Questions | Q 6.16

State the valency of the element or radical given below

CrO4

Additional Questions | Q 6.16

State the name of the element or radical given below

CrO4

Additional Questions | Q 6.17

State the valency of the element or radical given below

ClO

Additional Questions | Q 6.17

State the name of the element or radical given below

ClO

Additional Questions | Q 6.18

State the valency of the element or radical given below

MnO4

Additional Questions | Q 6.18

State the name of the element or radical given below

MnO4

Additional Questions | Q 6.19

State the valency of the element or radical given below

Li

Additional Questions | Q 6.19

State the name of the element or radical given below

Li

Additional Questions | Q 6.2

State the valency of the element or radical given below

I

Additional Questions | Q 6.2

State the name of the element or radical given below

I

Additional Questions | Q 6.21

State the valency of the element or radical given below

OH

Additional Questions | Q 6.21

State the name of the element or radical given below

OH

Additional Questions | Q 6.22

State the valency of the element or radical given below

O2

Additional Questions | Q 6.22

State the name of the element or radical given below

O2

Additional Questions | Q 6.23

State the valency of the element or radical given below

ZnO2

Additional Questions | Q 6.23

State the name of the element or radical given below

ZnO2

Additional Questions | Q 6.24

State the valency of the element or radical given below

SiO3

Additional Questions | Q 6.24

State the name of the element or radical given below

SiO3

Additional Questions | Q 6.25

State the valency of the element or radical given below

NO3

Additional Questions | Q 6.25

State the name of the element or radical given below

NO3

Additional Questions | Q 6.26

State the valency of the element or radical given below

SO3

Additional Questions | Q 6.26

State the name of the element or radical given below

SO3

Additional Questions | Q 6.27

State the valency of the element or radical given below

SO4

Additional Questions | Q 6.27

State the name of the element or radical given below

SO4

Additional Questions | Q 6.28

State the valency of the element or radical given below

PO4

Additional Questions | Q 6.28

State the name of the element or radical given below

PO4

Additional Questions | Q 6.29

State the valency of the element or radical given below

N

Additional Questions | Q 6.29

State the name of the element or radical given below

N

Additional Questions | Q 6.3

State the valency of the element or radical given below

C

Additional Questions | Q 6.3

State the name of the element or radical given below

C

Additional Questions | Q 6.31

State the valency of the element or radical given below

PO3

Additional Questions | Q 6.31

State the name of the element or radical given below

PO3

Additional Questions | Q 6.32

State the valency of the element or radical given below

Al

Additional Questions | Q 6.32

State the name of the element or radical given below

Al

Additional Questions | Q 6.33

State the valency of the element or radical given below

Ca

Additional Questions | Q 6.33

State the name of the element or radical given below

Ca

Additional Questions | Q 6.34

State the valency of the element or radical given below

H

Additional Questions | Q 6.34

State the name of the element or radical given below

H

Additional Questions | Q 6.35

State the valency of the element or radical given below

PbO2

Additional Questions | Q 6.35

State the name of the element or radical given below

PbO2

Additional Questions | Q 6.36

State the valency of the element or radical given below

HSO3

Additional Questions | Q 6.36

State the name of the element or radical given below

HSO3

Additional Questions | Q 6.37

State the valency of the element or radical given below

AlO2

Additional Questions | Q 6.37

State the name of the element or radical given below

AlO2

Additional Questions | Q 6.38

State the valency of the element or radical given below

Cr

Additional Questions | Q 6.38

State the name of the element or radical given below

Cr

Additional Questions | Q 6.39

State the valency of the element or radical given below

HSO4

Additional Questions | Q 6.39

State the name of the element or radical given below

HSO4

Additional Questions | Q 6.4

State the valency of the element or radical given below

NH4

Additional Questions | Q 6.4

State the name of the element or radical given below

NH4

Additional Questions | Q 7.1

State the variable valencies of the following element and give their name.

Cu

Additional Questions | Q 7.2

State the variable valencies of the following element and give their name.

Ag

Additional Questions | Q 7.3

State the variable valencies of the following element and give their name.

Hg

Additional Questions | Q 7.4

State the variable valencies of the following element and give their name.

Fe

Additional Questions | Q 7.5

State the variable valencies of the following element and give their name.

Pb

Additional Questions | Q 7.6

State the variable valencies of the following element and give their name.

Sn

Additional Questions | Q 7.7

State the variable valencies of the following element and give their name.

Mn

Additional Questions | Q 7.8

State the variable valencies of the following element and give their name.

Pt

Additional Questions | Q 7.9

State the variable valencies of the following element and give their name.

Au

Additional Questions | Q 8.01

State if the following element or radical is divalent?

Lithium

Additional Questions | Q 8.02

State if the following element or radical is divalent?

Nickel

Additional Questions | Q 8.03

State if the following element or radical is divalent?

Ammonium

Additional Questions | Q 8.04

State if the following element or radical is divalent?

Bromide

Additional Questions | Q 8.05

State if the following element or radical is divalent?

Sulphite

Additional Questions | Q 8.06

State if the following element or radical is divalent?

Nitride

Additional Questions | Q 8.07

State if the following element or radical is divalent?

Carbide

Additional Questions | Q 8.08

State if the following element or radical is divalent?

Chromium

Additional Questions | Q 8.09

State if the following element or radical is divalent?

Bisulphite

Additional Questions | Q 8.1

State if the following element or radical is divalent?

Dichromate

Additional Questions | Q 8.11

State if the following element or radical is divalent?

Permanganate

Additional Questions | Q 9.1

Explain the meaning of the term ‘compound’ with a suitable example.

Additional Questions | Q 9.2

State the main characteristics of a compound with special reference to the compound iron [II] sulphide.

Additional Questions | Q 10.1

Name the element in the compound and give the formula of the following compound:

Nitric acid

Additional Questions | Q 10.2

Name the element in the compound and give the formula of the following compound:

Carbonic acid

Additional Questions | Q 10.3

Name the element in the compound and give the formula of the following compound:

Phosphoric acid

Additional Questions | Q 10.4

Name the element in the compound and give the formula of the following compound:

Acetic acid

Additional Questions | Q 10.5

Name the element in the compound and give the formula of the following compound:

Blue vitriol

Additional Questions | Q 10.6

Name the element in the compound and give the formula of the following compound:

Green vitriol

Additional Questions | Q 10.7

Name the element in the compound and give the formula of the following compound:

Glauber’s salt

Additional Questions | Q 10.8

Name the element in the compound and give the formula of the following compound:

Ethane

Additional Questions | Q 10.9

Name the element in the compound and give the formula of the following compound:

Ethanol

Additional Questions | Q 11.1

Explain the terms ‘chemical formula’.

Additional Questions | Q 11.2

State why the molecular formula of zinc carbonate is ZnCO.

Additional Questions | Q 12.01
Write the formula of the following compound: 
Potassium chloride
Additional Questions | Q 12.01
Write the formula of the following compound: 
Potassium nitrate
Additional Questions | Q 12.01
Write the formula of the following compound: 
Potassium carbonate
Additional Questions | Q 12.01
Write the formula of the following compound: 
Potassium bisulphate
Additional Questions | Q 12.01
Write the formula of the following compound: 
Potassium sulphite
Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium dichromate

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium permanganate

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium zincate

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium plumbite

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium sulphate

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium bicarbonate

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium aluminate

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium hydroxide

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium iodide

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium nitrite

Additional Questions | Q 12.01

Write the formula of the following compound:

Potassium bisulphite

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium chloride

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium nitrate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium carbonate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium bisulphate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium sulphite

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium dichromate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium permanganate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium zincate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium plumbite

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium sulphate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium bicarbonate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium aluminate

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium hydroxide

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium iodide

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium nitrite

Additional Questions | Q 12.02

Write the formula of the following compound:

Sodium bisulphite

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium chloride

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium nitrate

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium carbonate

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium bisulphite

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium sulphite

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium sulphate

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium bicarbonate

Additional Questions | Q 12.03

Write the formula of the following compound:

Calcium hydroxide

Additional Questions | Q 12.04

Write the formula of the following compound:

Magnesium chloride

Additional Questions | Q 12.04

Write the formula of the following compound:

Magnesium nitrate

Additional Questions | Q 12.04

Write the formula of the following compound:

Magnesium carbonate

Additional Questions | Q 12.04

Write the formula of the following compound:

Magnesium sulphate

Additional Questions | Q 12.04

Write the formula of the following compound:

Magnesium bicarbonate

Additional Questions | Q 12.04

Write the formula of the following compound:

Magnesium hydroxide

Additional Questions | Q 12.04

Write the formula of the following compound:

Magnesium oxide

Additional Questions | Q 12.05

Write the formula of the following compound:

Zinc chloride

Additional Questions | Q 12.05

Write the formula of the following compound:

Zinc nitrate

Additional Questions | Q 12.05

Write the formula of the following compound:

Zinc carbonate

Additional Questions | Q 12.05

Write the formula of the following compound:

Zinc sulphate

Additional Questions | Q 12.05

Write the formula of the following compound:

Zinc hydroxide

Additional Questions | Q 12.05

Write the formula of the following compound:

Zinc oxide

Additional Questions | Q 12.05

Write the formula of the following compound:

Zinc oxide

Additional Questions | Q 12.06

Write the formula of the following compound:

Aluminium chloride

Additional Questions | Q 12.06

Write the formula of the following compound:

Aluminium nitrate

Additional Questions | Q 12.06

Write the formula of the following compound:

Aluminium carbonate

Additional Questions | Q 12.06

Write the formula of the following compound:

Aluminium sulphate

Additional Questions | Q 12.06

Write the formula of the following compound:

Aluminium hydroxide

Additional Questions | Q 12.06

Write the formula of the following compound:

Aluminium hydroxide

Additional Questions | Q 12.06

Write the formula of the following compound:

Aluminium oxide

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [I] chloride

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [II] chloride

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [I] oxide

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [II] oxide

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [I] sulphide

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [II] sulphide

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [II] nitrate

Additional Questions | Q 12.07

Write the formula of the following compound:

Copper [II] sulphate

Additional Questions | Q 12.07

Write the formula of the following compound:

Tetra amine copper [II] sulphate

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [II] chloride 

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [III] chloride 

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [II] oxide

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [III] oxide

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [II] sulphate

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [III] sulphate

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [II] sulphide

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [III] sulphide

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [II] hydroxide

Additional Questions | Q 12.08

Write the formula of the following compound:

Iron [III] hydroxide

Additional Questions | Q 12.09

Write the formula of the following compound:

Lead [II] chloride

Additional Questions | Q 12.09

Write the formula of the following compound:

Lead [II] oxide

Additional Questions | Q 12.09

Write the formula of the following compound:

Lead [II] hydroxide

Additional Questions | Q 12.09

Write the formula of the following compound:

Lead [II] nitrate

Additional Questions | Q 12.09

Write the formula of the following compound:

Lead [II] sulphate

Additional Questions | Q 12.1

Write the formula of the following compound:

Silver [I] chloride

Additional Questions | Q 12.1

Write the formula of the following compound:

Silver [II] chloride

Additional Questions | Q 12.1

Write the formula of the following compound:

Diamine silver chloride

Additional Questions | Q 13.01

Write the name of the following compound:

KClO

Additional Questions | Q 13.02

Write the name of the following compound:

HClO

Additional Questions | Q 13.03

Write the name of the following compound:

NaClO3 

Additional Questions | Q 13.04

Write the name of the following compound:

AIN 

Additional Questions | Q 13.05

Write the name of the following compound:

K2Cr2O7 

Additional Questions | Q 13.06

Write the name of the following compound:

KMnO4 

Additional Questions | Q 13.07

Write the name of the following compound:

Ca3N2 

Additional Questions | Q 13.08

Write the name of the following compound:

Ca3(PO4)2 

Additional Questions | Q 13.09

Write the name of the following compound:

H2SO

Additional Questions | Q 13.1

Write the name of the following compound:

HCl

Additional Questions | Q 13.11

Write the name of the following compound:

HNO

Additional Questions | Q 13.12

Write the name of the following compound:

H2SO

Additional Questions | Q 13.13

Write the name of the following compound:

NH4OH

Additional Questions | Q 13.14

Write the name of the following compound:

NaOH

Additional Questions | Q 13.15

Write the name of the following compound:

H2CO

Additional Questions | Q 13.16

Write the name of the following compound:

HNO2 

Additional Questions | Q 13.17

Write the name of the following compound:

Mg(HCO3)2 

Additional Questions | Q 13.18

Write the name of the following compound:

NaAlO2 

Additional Questions | Q 13.19

Write the name of the following compound:

K2PbO2 

Additional Questions | Q 13.2

Write the name of the following compound:

Cr2(SO4)3 

Additional Questions | Q 13.21

Write the name of the following compound:

Na2O

Additional Questions | Q 14.1

Explain the term ‘chemical equation’.

Additional Questions | Q 14.2

What is meant by ‘reactants’ and ‘products’ in a chemical equation?

Additional Questions | Q 15.1

Give an example of a chemical equation in which two reactants form:

one product

Additional Questions | Q 15.2

Give an example of a chemical equation in which two reactants form:

two product

Additional Questions | Q 15.3

Give an example of a chemical equation in which two reactants form:

three product

Additional Questions | Q 15.4

Give an example of a chemical equation in which two reactants form:

four product

Additional Questions | Q 16.1

\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]

State what is a ‘balanced equation’.

Additional Questions | Q 16.2

\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]

Give a reason why the above equation is balanced.

Additional Questions | Q 16.3

\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]

State why the compound MnO2 is written above the arrow.

Additional Questions | Q 17.1

What does the symbol '→' present in a chemical equation, mean?

Additional Questions | Q 17.2

What does the symbol '⇌' present in a chemical equation, mean?

Additional Questions | Q 17.3

What does the symbol '(s)' present in a chemical equation, mean?

Additional Questions | Q 17.4

What does the symbol '(l)' present in a chemical equation, mean?

Additional Questions | Q 17.5

What does the symbol '(g)' present in a chemical equation, mean?

Additional Questions | Q 17.6

What does the symbol '(aq.)' present in a chemical equation, mean?

Additional Questions | Q 18.1

CaCO3 + 2HCl[dil.] → CaCl2 + H2O + CO2 [g]

State the information provided by the above chemical equation.

Additional Questions | Q 18.2

CaCO3 + 2HCl[dil.] → CaCl2 + H2O + CO2 [g]

State the information not conveyed by the above chemical equation. 

Additional Questions | Q 19.01

Balance the following simple equation:

C   +   O2  →  CO

Additional Questions | Q 19.02

Balance the following simple equation:

N2   +   O2  ⇌  NO

Additional Questions | Q 19.03

Balance the following simple equation:

ZnS   +   O2  →  ZnO + SO2 

Additional Questions | Q 19.04

Balance the following simple equation:

Al   +   O2  →  Al2O3 

Additional Questions | Q 19.05

Balance the following simple equation:

Mg   +   N2  →  Mg3N2 

Additional Questions | Q 19.06

Balance the following simple equation:

Al   +   N2  →  AlN 

Additional Questions | Q 19.07

Balance the following simple equation:

NO   +   O2  →  NO2 

Additional Questions | Q 19.08

Balance the following simple equation:

SO2   +   O2  ⇌  SO3 

Additional Questions | Q 19.09

Balance the following simple equation:

H2   +   Cl2  →  HCl

Additional Questions | Q 19.1

Balance the following simple equation:

Fe   +   Cl2  →  FeCl3 

Additional Questions | Q 19.11

Balance the following simple equation:

H2S   +   Cl2  →  S  +  HCl 

Additional Questions | Q 19.12

Balance the following simple equation:

FeCl2   +   Cl2  →  FeCl3 

Additional Questions | Q 19.13

Balance the following simple equation:

CO2   +   C  →  CO 

Additional Questions | Q 19.14

Balance the following simple equation:

KHCO3 →  K2CO3   +    H2O   +   CO2

Additional Questions | Q 19.15

Balance the following simple equation:

K   +   CO2   →    K2O   +   C

Additional Questions | Q 19.16

Balance the following simple equation:

Ca(OH)2   +   HNO3   →   Ca(NO3)2   +   H2

Additional Questions | Q 19.17

Balance the following simple equation:

K  +   H2O   →   KOH   +   H2 

Additional Questions | Q 19.18

Balance the following simple equation:

Ca  +   H2O   →   Ca(OH)2   +   H2 

Additional Questions | Q 19.19

Balance the following simple equation:

Al  +   H2O   →   Al2O3   +   H2 

Additional Questions | Q 19.2

Balance the following simple equation:

Fe  +   H2O  ⇌   Fe3O4   +   H2 

Additional Questions | Q 19.21

Balance the following simple equation:

Zn  +   NaOH  →   Na2ZnO2   +   H2 

Additional Questions | Q 19.22

Balance the following simple equation:

Zn  +   HCl  →   ZnCl2   +   H2 

Additional Questions | Q 19.23

Balance the following simple equation:

Al  +   H2SO4  →   Al2(SO4)3   +   H2 

Additional Questions | Q 19.24

Balance the following simple equation:

H2  +   O2  →   H2O

Additional Questions | Q 19.25

Balance the following simple equation:

N2  +  H2  ⇌   NH3

Additional Questions | Q 19.26

Balance the following simple equation:

Fe2O3  +  H2  → Fe  +  H2O

Additional Questions | Q 19.27

Balance the following simple equation:

KBr  +  Cl2  → KCl  +  Br2

Additional Questions | Q 19.28

Balance the following simple equation:

NaOH  +  Cl2  →  NaCl  +   NaClO  +  H2

Additional Questions | Q 19.29

Balance the following simple equation:

NaHCO3  +  H2SO4  →  Na2SO4  +  H2O  +  CO2 

Additional Questions | Q 19.3

Balance the following simple equation:

Mg  +  CO2  →  MgO  +  C

Additional Questions | Q 19.31

Balance the following simple equation:

Fe2O3  +  CO  →  Fe  +  CO2 

Additional Questions | Q 19.32

Balance the following simple equation:

CaO  +  HCl  →  CaCl2  +  H2

Additional Questions | Q 20.01

Write a balanced equation for the following word equation:

Potassium nitrate → Potassium nitrite + Oxygen

Additional Questions | Q 20.02

Write a correctly balanced equation for the following “word equation”:
calcium + water → calcium hydroxide + hydrogen

Additional Questions | Q 20.03

Write a balanced equation for the following word equation:

Iron + Hydrochloric acid → Iron [II] chloride + Hydrogen

Additional Questions | Q 20.04

Write a balanced equation for the following word equation:

Nitrogen dioxide + Water + Oxygen → Nitric acid

Additional Questions | Q 20.05

Write a balanced equation for the following word equation:

Lead dioxide [lead (IV) oxide] → Lead monoxide + Oxygen 

Additional Questions | Q 20.06

Write a balanced equation for the following word equation:

Aluminium + Oxygen → Aluminium oxide 

Additional Questions | Q 20.07

Write a balanced chemical equation for the following word equation:

Iron + Chlorine → Iron (III) chloride

Additional Questions | Q 20.08

Write a balanced equation for the following word equation:

Potassium bromide + Chlorine → Potassium chloride + Bromine

Additional Questions | Q 20.09

Write a balanced equation for the following word equation:

Potassium bicarbonate → Potassium carbonate + Water + Carbon dioxide 

Additional Questions | Q 20.1

Write a balanced equation for the following word equation:

Calcium hydroxide + Ammonium chloride → Calcium chloride + Water + Ammonia 

Additional Questions | Q 21.01

Balance the following important equation:

NaHCO3 + H2SO4 → Na2SO4 + H2O + CO2 

Additional Questions | Q 21.02

Balance the following important equation:

NaOH + H2SO4 → Na2SO4 + H2

Additional Questions | Q 21.03

Balance the following important equation:

Pb(NO3)2 + NaCl → NaNO3 + PbCl2 

Additional Questions | Q 21.04

Balance the following important equation:

FeSO4 + NaOH → Na2SO4 + Fe(OH)2 

Additional Questions | Q 21.05

Balance the following important equation:

FeCl3 + NaOH → NaCl + Fe(OH)2  

Additional Questions | Q 21.06

Balance the following important equation:

CuSO4 + NaOH → Na2SO4 + Cu(OH)2  

Additional Questions | Q 21.07

Balance the following important equation:

FeCl3 + NH4OH → NH4Cl + Fe(OH)3  

Additional Questions | Q 21.08

Balance the following important equation:

ZnO + NaOH → Na2ZnO2 + H2O  

Additional Questions | Q 21.09

Balance the following important equation:

Pb(OH)2 + NaOH → Na2PbO2 + H2O  

Additional Questions | Q 21.1

Balance the following important equation:

Al2O3.2H2O + NaOH → NaAlO2 + H2O  

Additional Questions | Q 21.11

Balance the following important equation:

NaAlO2 + H2O  → NaOH  + Al(OH)3 

Additional Questions | Q 21.12

Balance the following important equation:

Al(OH)3  → Al2O3  + H2

Additional Questions | Q 21.13

Balance the following important equation:

ZnS  + O2  → ZnO + SO2 

Additional Questions | Q 21.14

Balance the following important equation:

Fe2O3  + Al  → Al2O3 + Fe

Additional Questions | Q 21.15

Balance the following important equation:

Al + Cl2  → AlCl3 

Additional Questions | Q 21.16

Balance the following important equation:

NaCl + H2SO4  → Na2SO4 + HCl  

Additional Questions | Q 21.17

Balance the following important equation:

Fe + HCl  → FeCl2 + H2  

Additional Questions | Q 21.18

Balance the following important equation:

Na2CO3 + HCl → NaCl + H2O + CO2 

Additional Questions | Q 21.19

Balance the following important equation:

Pb(NO3)2 + HCl → PbCl2 + HNO3 

Additional Questions | Q 21.2

Balance the following important equation:

AgCl + NH4OH → Ag(NH3)2Cl + H2O

Additional Questions | Q 21.21

Balance the following important equation:

MnO2 + HCl → MnCl2 + H2O + Cl2 

Additional Questions | Q 21.22

Balance the following important equation:

Pb3O2 + HCl → PbCl2 + H2O + Cl2 

Additional Questions | Q 21.23

Balance the following important equation:

KMnO4 + HCl → KCl + MnCl2 + H2O + Cl2 

Additional Questions | Q 21.24

Balance the following important equation:

K2Cr2O7 + HCl → KCl + CrCl3 + H2O + Cl2 

Additional Questions | Q 21.25

Balance the following important equation:

NH4Cl + Ca(OH)2 → CaCl2 + H2O + NH3 

Additional Questions | Q 21.26

Balance the following important equation:

(NH4)2SO4 + NaOH → Na2SO4 + H2O + NH3

Additional Questions | Q 21.27

Balance the following important equation:

Mg3N2 + H2O → Mg(OH)2 + NH3

Additional Questions | Q 21.28

Balance the following important equation:

AIN + H2O → Al(OH)2 + NH3

Additional Questions | Q 21.29

Balance the following important equation:

NH3 + O2 → N2 + H2O (burning of NH3

Additional Questions | Q 21.3

Balance the following important equation:

NH3 + O2 → NO + H2O (catalytic oxidation of  NH3

Additional Questions | Q 21.31

Balance the following important equation:

NH4OH + H2SO4 → (NH4)2SO4 + H2

Additional Questions | Q 21.32

Balance the following important equation:

NH3 + CuO → Cu + H2O + N2 

Additional Questions | Q 21.33

Balance the following important equation:

NH3 + Cl2 → HCl + NCl3  [nitrogen trichloride]

Additional Questions | Q 21.34

Balance the following important equation:

HNO3  → H2O + NO2 + O2  

Additional Questions | Q 21.35

Balance the following important equation:

Ca(HCO3)2 + HNO3  → Ca(NO3)2 + H2O + CO2 

Additional Questions | Q 21.36

Balance the following important equation:

C + HNO3 (conc.) → CO2 + H2O + NO2 

Additional Questions | Q 21.37

Balance the following important equation:

S + HNO3 (conc.) → H2SO4 + H2O + NO2 

Additional Questions | Q 21.38

Balance the following important equation:

Cu + HNO3 (conc.) → Cu(NO3)2 + H2O + NO2 

Additional Questions | Q 21.39

Balance the following important equation:

C + H2SO4 (conc.) → CO2 + H2O + SO2 

Additional Questions | Q 21.4

Balance the following important equation:

S + H2SO4 (conc.) → SO2 + H2

Additional Questions | Q 21.41

Balance the following important equation:

Cu + H2SO4 (conc.) → CuSO4 + H2O + SO2  

Additional Questions | Q 22.1

Give a balanced equation by partial equation method, [steps are given below].

The reaction of excess ammonia with chlorine – Ammonia as a reducing agent

  1. Ammonia first reacts with chlorine to give hydrogen chloride and nitrogen.
  2. Hydrogen chloride then further reacts with excess ammonia to give ammonium chloride.
Additional Questions | Q 22.2

Give a balanced equation by partial equation method, [steps are given below].

Oxidation of Lead [II] Sulphide by Ozone

  1. Ozone first decomposes to give molecular oxygen & nascent oxygen.
  2. Nascent oxygen then oxidises lead [II] sulphide to lead [II] sulphate.
Additional Questions | Q 23.1

Define the term Relative atomic mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.

Additional Questions | Q 23.2

Define the term Relative molecular mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.

Additional Questions | Q 24.1

Calculate the relative molecular mass of ZnCO3.

Additional Questions | Q 24.1

Calculate the relative molecular mass of CaSO4 [Zn = 65, S=32, O = 16, Ca = 40, C = 12]

Additional Questions | Q 24.2

Calculate the percentage composition of calcium chloride.

Additional Questions | Q 24.2

Calculate the percentage composition of calcium nitrate [Ca = 40 , Cl = 35.5 , N = 14 , O = 16]

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The Language Of Chemistry

Viraf J. Dalal solutions for Class 9 Simplified ICSE Chemistry Chapter 1 The Language Of Chemistry The Language Of Chemistry

The Language Of Chemistry | Q 1

Match the names of ions and radicals from 1 to 10 with their correct answer from A to Q.

Column A Column B
1. Hypochloride A: Hg2+
2. Permanganate B: \[\ce{MnO_4^1-}\]
3. Plumbous C: Sn4+
4. Zincate D: Pb2+
5. Nitride E: Sn2+
6. Mercuric F: Pb4+
7. Stannic G: \[\ce{SO_3^2-}\]
8. Nitrite H: N3-
9. Sulphite I: \[\ce{NO_2^1-}\]
10. Dichromate J: \[\ce{MnO_4^2-}\]
  K: Hg1+
L: \[\ce{SO_4^2-}\]
M: CIO1-
N: \[\ce{ZnO_2^2-}\]
O: \[\ce{Cr_2O_7^2-}\]
P: \[\ce{CrO_4^2-}\]
Q: \[\ce{ClO_3^1-}\]
The Language Of Chemistry | Q 2.01

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

(NH4)3SO4

The Language Of Chemistry | Q 2.02

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

NaZnO2

The Language Of Chemistry | Q 2.03

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

KCr2O7

The Language Of Chemistry | Q 2.04

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

NaCO3

The Language Of Chemistry | Q 2.05

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

Ca2(PO4)3

The Language Of Chemistry | Q 2.06

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

Mg(SO4)2

The Language Of Chemistry | Q 2.07

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

KNO3

The Language Of Chemistry | Q 2.08

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

NaClO

The Language Of Chemistry | Q 2.09

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

NaO

The Language Of Chemistry | Q 2.1

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

BaCl2

The Language Of Chemistry | Q 3.1

Fill in the blank with the correct word from the  options given below:

A symbol represents a short form of a / an ________.

  • atom

  • element

  • molecule

The Language Of Chemistry | Q 3.2

Fill in the blank with the correct word from the options given below:

Compounds are always _______ in nature.

  • heterogeneous

  • homogeneous

The Language Of Chemistry | Q 3.3

Fill in the blank with the correct word from the options given below:

Variable valency is exhibited since electrons are lost from an element from the __________ shell.

  • valence

  • penultimate

The Language Of Chemistry | Q 3.4

Fill in the blank with the correct word from the options given below:

A chemical equation is a shorthand form for a _______ change.

  • physical

  • chemical

The Language Of Chemistry | Q 3.5

Fill in the blank with the correct word from the options given below:

Relative molecular mass of an element/compound is the number of times one ________ of the substance is heavier than −1/12that the mass of an atom of carbon [C12].

  • atom

  • ion

  • molecule

The Language Of Chemistry | Q 4.01

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

Na2SO3 + HCl → 2NaCl + H2O + SO2

The Language Of Chemistry | Q 4.02

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

CaC2 + N2 → 2CaCN2 + C

The Language Of Chemistry | Q 4.03

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

Fe2O3 + 2H2 → 2Fe + 3H2O

The Language Of Chemistry | Q 4.04

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

Cl2 + 2H2O + SO2 → 4HCl + H2SO4

The Language Of Chemistry | Q 4.05

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

6NaOH + 3Cl2 → 6NaCl + NaClO3 + 3H2O

The Language Of Chemistry | Q 4.06

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

C2H5OH + 3O2 → 2CO2 + 2H2O

The Language Of Chemistry | Q 4.07

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

NaOH + CO2 → Na2CO3 + H2O

The Language Of Chemistry | Q 4.08

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

2H2O + 2Cl2 → 2HCl + O2

The Language Of Chemistry | Q 4.09

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

3CuO + NH3 → 3Cu + 3H2O + N2

The Language Of Chemistry | Q 4.1

Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

PbO2 +4HCl → PbCl2 + H2O + Cl2

The Language Of Chemistry | Q 5

With reference to a chemical equation state which of the statements 1 to 5 pertain to A or B.
A: Information provided by a chemical equation. 
B: Limitations of a chemical equation

  1. The nature of the individual elements.
  2. The speed of the reaction.
  3. The state of matter in which the substance is present.
  4. The completion of the reaction.
  5. The direction of the reaction.
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Chapter 1: The Language Of Chemistry

ExerciseAdditional QuestionsThe Language Of Chemistry
Class 9 Simplified ICSE Chemistry - Shaalaa.com

Viraf J. Dalal solutions for Class 9 Simplified ICSE Chemistry chapter 1 - The Language Of Chemistry

Viraf J. Dalal solutions for Class 9 Simplified ICSE Chemistry chapter 1 (The Language Of Chemistry) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Class 9 Simplified ICSE Chemistry solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Viraf J. Dalal textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 9 Simplified ICSE Chemistry chapter 1 The Language Of Chemistry are Writing Chemical Formulae - Formulae of Simple Compounds, Naming Certain Compounds, Chemical equations, Atomic Mass, Molecular Mass, Percentage Composition, Empirical Formula of a Compound, Concept for Language of Chemistry, Symbol of an Element, Valency, Radicals, Chemical Equation, Origin of Symbols of Elements, Concept of Hydrogen, Balancing Simple Equations.

Using Viraf J. Dalal Class 9 solutions The Language Of Chemistry exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Viraf J. Dalal Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 9 prefer Viraf J. Dalal Textbook Solutions to score more in exam.

Get the free view of chapter 1 The Language Of Chemistry Class 9 extra questions for Class 9 Simplified ICSE Chemistry and can use Shaalaa.com to keep it handy for your exam preparation

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