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Selina solutions for Concise Chemistry Class 10 ICSE chapter 13 - Practical Work [Latest edition]

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Concise Chemistry Class 10 ICSE - Shaalaa.com

Chapter 13: Practical Work

Intext QuestionsExercise 13
Intext Questions [Page 224]

Selina solutions for Concise Chemistry Class 10 ICSE Chapter 13 Practical Work Intext Questions [Page 224]

Intext Questions | Q 1 | Page 224

(a) Give only one suitable chemical test to identify the following gases.

(i)Ammonia

(ii) Sulphur dioxide

(iii)Hydrogen Chloride

(iv)Chlorine

(v)Carbon Dioxide

(vi)Oxygen

(vii)Hydrogen

(b) Select a basic gas mentioned in Q.1 (a). How is the basic nature suspected?

(c) Select acidic gases from the gases mentioned in Q.1 (a). How is the acidic nature suspected?

(d) The two gases A and B are bleaching agents. A is greenish-yellow and bleaches due to its oxidizing property while B is a colourless gas that bleaches due to reduction. Identify A and B?

(e) Which gas turn blue cobalt chloride paper light pink?

Give one similarity in the test between (i)Cl2 and HCl (ii) SO2 and CO2.

Intext Questions | Q 2.1 | Page 224

Name the gas which: Extinguishes burning wooden splinter.

Intext Questions | Q 2.2 | Page 224

Name the gas which: Turns moist red litmus blue.

Intext Questions | Q 2.3 | Page 224

Name the gas which: Do not affect moist litmus.

Intext Questions | Q 2.4 | Page 224

Name the gas which: Affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.

Intext Questions | Q 3.1 | Page 224

Name:

Two carbonates do not produce carbon dioxide on heating.

Intext Questions | Q 3.2 | Page 224

Name:

A colourless gas which bleaches.

Intext Questions | Q 3.3 | Page 224

Name:

Gases which has a sour taste.

Intext Questions | Q 3.4 | Page 224

Name:

Greenish-yellow gas which also bleaches.

Intext Questions | Q 3.5 | Page 224

Name:

Gas with rotten egg smell.

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Exercise 13 [Pages 228 - 230]

Selina solutions for Concise Chemistry Class 10 ICSE Chapter 13 Practical Work Exercise 13 [Pages 228 - 230]

Exercise 13 | Q 1 | Page 228

From the following list of substances choose those which meet the description given below. Ammonium chloride, ammonium nitrate, chlorine, dilute hydrochloric acid, iron, lead nitrate, manganese (IV) oxide, silver nitrate, sodium nitrate, sodium nitrite, and sulphur.

Two compounds whose aqueous solutions give white precipitates with dilute hydrochloric acid.

Exercise 13 | Q 2.1 | Page 228

Name the anion present in the following compound:

Compound A, when warmed with concentrated sulphuric acid, gives a gas which fumes in moist air and which gives dense white fumes with ammonia.

Exercise 13 | Q 2.2 | Page 228

Name the anion present in the following compound:

When a barium chloride solution is added to a solution of compound B, a white precipitate insoluble in dilute hydrochloric acid is formed.

Exercise 13 | Q 2.3 | Page 229

Name the anion present in the following compound:

The action of heat on the insoluble compound C produces a gas which turns lime water turbid.

Exercise 13 | Q 2.4 | Page 229

Name the anion present in the following compound:

Compound D, when warmed with dilute sulphuric acid, gives a gas that turns acidified dichromate solution green.

Exercise 13 | Q 3.1 | Page 228

A given white crystalline salt was tested as follows: It dissolved in water and the resulting solution of the salt turned blue litmus red. What conclusions can be drawn for the observation?

Exercise 13 | Q 3.2 | Page 228

A given white crystalline salt was tested as follows: The addition of barium chloride solution into this solution gave a white precipitate. What conclusions can be drawn for the observation?

Exercise 13 | Q 3.3 | Page 228

A given white crystalline salt was tested as follows: A flame test on the salt gave a persistent golden-yellow colourisation. What conclusions can be drawn for the observation?

Exercise 13 | Q 4.1 | Page 228

Sodium hydroxide solution is added to solution A. A white precipitate is formed which is insoluble in excess sodium hydroxide solution. What is the metal ion present in solution A?

Exercise 13 | Q 4.2 | Page 229

When an ammonium hydroxide solution is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide giving an inky blue solution. What is the cation present in solution B?

Exercise 13 | Q 4.3 | Page 229

When an ammonium salt is warmed with a sodium hydroxide solution, ammonia gas is evolved. State three ways in which you could identify this gas.

Exercise 13 | Q 5 | Page 229

Complete the following table and write your observations.

  Hydrogen sulphide Ammonia Sulphur dioxide Hydrogen chloride
Shake the gas with red litmus solution        
Shake the gas with blue litmus solution        
Apply a burning splint to a gas        
Exercise 13 | Q 6 | Page 229

Use the information given in (a) to (h) to identify the substances P to W selecting your answers from the given list.

List: 

Calcium Oxygen Copper (II) Oxide
Carbon Calcium hydroxide Copper (II) Nitrate
Lead (II) Oxide Hydrogen chloride Chlorine
Lead (II) Nitrate Calcium Oxide  Ammonium chloride

(a) P is white solid. When heated produces white fumes (sublime).

(b) P and R on warming produce an alkaline gas.

(c) On adding water to T, heat is evolved and R is formed.

(d) Q burns brightly in the air to form T.

(e) When S is heated, it gives off brown fumes and leaves a black residue of U.

(f) A solution of S is formed by warming U with dilute nitric acid.

(g) V is a gaseous non-metallic element that reacts with hydrogen to form W.

(h) A solution of W will neutralize the solution of R.

Exercise 13 | Q 7 | Page 229

Copy and complete the following table which refers to the action of heat on some carbonates:

Carbonate Colour of residue on cooling
Zinc Carbonate  

Lead Carbonate

 

Copper Carbonate

 
Exercise 13 | Q 8.1 | Page 229

Distinguish by a chemical test,

Sodium carbonate and sodium sulphite

Exercise 13 | Q 8.2 | Page 229

Distinguish by a chemical test,

Sodium chloride and sodium sulphite

Exercise 13 | Q 8.3 | Page 229

Distinguish by a chemical test,

Sodium hydroxide solution and ammonium hydroxide solution.

Exercise 13 | Q 8.4 | Page 229

Distinguish by a chemical test,

Ammonium sulphate and sodium sulphate

Exercise 13 | Q 8.5 | Page 229

Distinguish by a chemical test,

Sulphuric acid from nitric acid and hydrochloric acid.

Exercise 13 | Q 9 | Page 229

Sodium hydroxide solution is added first in a small quantity, then in excess to the aqueous salt solution of copper (II) sulphate, zinc nitrate, lead nitrate, calcium chloride and iron (III) sulphate. Copy of the following table and write the colour of the precipitate in (i) to (v) and the nature of the precipitate (soluble or insoluble) in (vi) to (x).

Aqueous salt solution

Colour of the precipitate when NaOH is added in small quantity

Nature of the(soluble or insoluble) when NaOH is added in excess

copper (II) sulphate

zinc nitrate

lead nitrate

calcium chloride

Iron (III) sulphate

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

(ix)

(x)

Exercise 13 | Q 10.1 | Page 230

State your observation when:

Lead nitrate solution and sodium chloride solution are mixed.

Exercise 13 | Q 10.2 | Page 230

State your observation when:

Zinc chloride solution, zinc nitrate solution, and zinc sulphate solutions are added individually to

(i)Barium chloride solution

(ii)Lead nitrate solution.

Exercise 13 | Q 10.3 | Page 230

State your observation when:

Decomposition of bicarbonates by dil. H2SO4

2NaHCO3 + H2SO4 → Na2SO4 + 2H2O + 2CO2

2KHCO3 + H2SO4 → K2SO4 + 2H2O + 2CO2

Exercise 13 | Q 11 | Page 230

The questions (i) to (v) refer to the following salt solutions listed A to F.

           A.Copper Nitrate

           B.Iron (II) Sulphate

           C.Iron (III) chloride

           D.Lead Nitrate

           E.Magnesium sulphate

          F.Zinc chloride

(I)Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by a barium chloride solution?

(II)Which two solutions will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?

(III)Which solution will give white precipitate, when either dilute hydrochloric acid or dilute sulphuric acid is added to it?

(IV)Which solution becomes a deep/inky blue colour when the excess of ammonium hydroxide is added to it?

(V)Which solution gives a white precipitate with an excess of ammonium hydroxide solution?

Exercise 13 | Q 12 | Page 230

Mention the colour changes observed when the following indicators are added:

Solution

Acids

Alkalies

(a) Alkaline phenolphthalein solution

(b) Methyl orange solution

(c) Neutral litmus solution

 

 

Exercise 13 | Q 13 | Page 230

Salts A, B, C, D, and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions.

(a) When silver nitrate solution is added to a solution of A, a white precipitate, insoluble in dilute nitric acid, is formed.

(b) The addition of dilute hydrochloric acid to B produces a gas which turns lead acetate black paper.

(c) When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test-tube, a brown ring is formed.

(d) When dilute sulphuric acid is added to D, a gas is produced which turns acidified potassium dichromate solution from orange to green.

(e) The addition of dilute hydrochloric acid to E produces effervescence. The gas produced turns lime water milky but does not affect acidified potassium dichromate solution.

Exercise 13 | Q 14.1 | Page 230

The salt which in solution gives a pale green precipitate with sodium hydroxide solution and a white precipitate with barium chloride solution is:

  • Iron (III) sulphate  

  • Iron (II) sulphate

  • Iron (II) chloride       

  • Iron (III) chloride

Exercise 13 | Q 14.2 | Page 230

Identify the following substances:

(i) An alkaline gas A which gives dense white fumes with hydrogen chloride.

(ii) A dilute acid B which does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper.

(iii) Gas C has an offensive smell like rotten eggs

(iv) Gas D is a colourless gas which can be used as a bleaching agent

(v) Liquid E can be dehydrated to produce ethene

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Chapter 13: Practical Work

Intext QuestionsExercise 13
Concise Chemistry Class 10 ICSE - Shaalaa.com

Selina solutions for Concise Chemistry Class 10 ICSE chapter 13 - Practical Work

Selina solutions for Concise Chemistry Class 10 ICSE chapter 13 (Practical Work) 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 Concise Chemistry Class 10 ICSE 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. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Chemistry Class 10 ICSE chapter 13 Practical Work are Periodic Properties-chemical Reactivity, Relation Between Atomic Number for Light Elements (Proton Number) and Atomic Mass for Light Elements, Periodicity on the Basis of Atomic Number for Elements, Periodic Properties - Electronegativity, Periodic Properties - Electron Affinity, Periodic Properties - Ionisation Potential, Periodic Properties - Metallic Character, Periodic Properties - Atomic Size, Periodic Properties and Variations of Properties:- Physical and Chemical, Periodic Properties -physical Properties, Formation and Properties of Ionic Compounds, Concept of Coordinate Bond, Comparison of Electrovalent and Covalent Compounds, Characteristic Properties of Covalent Compounds, Concept of Covalent Bond, Characteristic Properties of Electrovalent Compounds, Structure of Electrovalent Compounds NaCl, MgCl2, CaO, Concept of Electrovalent, Concept of Chemical Bonding, Concept of Molecule, Preparation - Laboratory Preparation of Salts (Normal and Acid Salts) – Relevant Laboratory, Types of Salts, Use of Litmus and pH Paper to Test for Acidity and Alkalinity, Ions Present in Mineral Acids, Alkalis and Salts and Their Solutions, Concept of Acid and Its Properties, Concept of Salts, Action of Alkalis (Naoh, Koh) on Certain Metals, Their Oxides and Hydroxides, On Solution of Salts - Sodium Hydroxide on Ammonium Salts, On Solution of Salts - Special Action of Ammonium Hydroxide on Solutions of Copper Salt, Formation and Colour of Hydroxide Precipitated for Solutions of Salts of Ca, Fe, Cu, Zn and Pb, On Solution of Salts - Colour of Salt and Its Solution, Analytical Chemistry, Electrolytes and Non-Electrolytes, Substances Containing Molecules Only, Ions Only, Both Molecules and Ions., Electrolysis, An Elementary Study of the Migration of Ions, Applications of Electrolysis, Concept of Electrolysis, Acids, Bases and Salts as Electrolytes, Dissociation of Ions and Electrical Conductivity, Substances Containing Molecules Only, Substances Containing Ions Only, Applications of Electrolysis - Purification of Copper, Substances Containing Both Molecules and Ions, Electroplating, Chemical Method - NaOH for Purifying Bauxite – Baeyer’s Process, Dressing of the Ore, Extraction of Aluminium, Common Ores of Iron, Aluminium and Zinc, Extracting Metals Towards the Top of the Activity Series, Extracting Metals in the Middle of the Activity Series, Extracting Metals Low in the Activity Series, Extraction of Metals from Ore, Reduction of Metallic Oxides, Concept of Metallurgy, Corrosion of Iron (Rusting) and Its Prevention, Position of the Metals (Alkali Metals and Alkaline Earth Metals) in the Periodic Table, Non Metals and Its Physical Properties, Uses of Acetic Acid, Chemical Properties of Acetic Acid, Concept of Acetic Acid, Concept of Ethanol, Hydrocarbons - Alkynes, Hydrocarbons - Alkenes,, Hydrocarbons - Alkanes, Simple Nomenclature, Structure of Compounds with Single, Double and Triple Bonds, Unique Nature of Carbon Atom, Concept of Organic Compounds, Homologous Series of Carbon Compound, Catalytic Oxidation of Ammonia as the Source of Nitric Acid, Ammonia - Uses of Ammonia, Burning of Ammonia in Oxygen, Ammonia - Reactions with Hydrogen Chloride and with Hot Copper (Ii) Oxide and Chlorine, Aqueous Solution of Ammonia, Ammonia - Density and Solubility of Ammonia (Fountain Experiment), Ammonia - Manufacture by Haber’s Process;, Ammonia - Laboratory Preparation, Concept of Ammonia, Properties of Ammonia, Nitric Acid as an Oxidizing Agent., Nitric Acid - Laboratory Method of Preparation of Nitric Acid from Potassium Nitrate Or Sodium Nitrate, Concept of Nitric Acid, Hydrogen Chloride - Acidic Properties of Its Solution, Hydrogen Chloride - Reaction with Ammonia, Hydrogen Chloride - Density and Solubility of Hydrogen Chloride (Fountain Experiment), Hydrogen Chloride - Preparation of Hydrogen Chloride from Sodium Chloride, Concept of Hydrogen Chloride, Method of Preparation of Hydrochloric Acid, Precipitation Reactions with Silver Nitrate Solution and Lead Nitrate Solution, Non-volatile Nature of Sulphuric Acid, Sulphuric Acid-manufacture by Contact Process, Concept of Sulphuric Acid, Sulphuric Acid - Behaviour as an Acid When Dilute, Sulphuric Acid - Oxidizing Agent When Concentrated, Sulphuric Acid - Dehydrating Agent, Molar Volume of a Gas at S.T.P, Deduction of Simple (Empirical) and Molecular Formula from the Percentage Composition of a Compound, Vapour Density and Its Relation to Relative Molecular Mass:, Refer to the Atomicity of Hydrogen, Oxygen, Nitrogen and Chlorine, Avogadro’s Law of Volume, Gay Lussac’s Law of Combining Volumes, Mole Concept, Percentage Composition, Empirical Formula of a Compound, Determination of Molecular Formula, Chemical Equation.

Using Selina Class 10 solutions Practical Work 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 Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 10 prefer Selina Textbook Solutions to score more in exam.

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