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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Give a Word Equation for the Following Reaction. Two Gases Which Combine to Give a Solid.

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प्रश्न

Give a word equation for the following reaction.

Two gases which combine to give a solid.

एका वाक्यात उत्तर
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उत्तर

Ammonia + Hydrogen chloride→ Ammonium chloride

NH3 (g) + HCl (g)→NH4Cl (s)

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पाठ 5: Language of Chemistry - Objective Type Questions

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विराफ जे. दलाल New Simplified Middle School Chemistry [English] Class 7
पाठ 5 Language of Chemistry
Objective Type Questions | Q 2.2

संबंधित प्रश्‍न

Complete and balance the following chemical equations

NaCI + `AgNO_3`  `→`


What are oxides ? 


                                    MATCH THE COLUMNS

1 . `H_2` + `CI_2` `→` 2HCI    a. displacement reaction
2. `2FeCI_3`+ `H_2`  `→` `2FeCI_2` +2HCI` b. addition of an electronegative redical 
3. Fe + `CuSO_4` `→``FeSO_4` +Cu`  c. removal of an electronegative redical 
4. `2H_2O` +`4NO_2`+`O_2` `→` `4HNO_3` d.reduction by adding hydrogen
5. 3Fe +`3CI_2` `→` `2FeCI_3` e.electrolysis of water
6. `FeCI_3`+ 3NaOH `→``Fe(OH)_3``↓`+NaCI F.double decomposition,precipitation reaction
7.`2H_2O` `→` `2H_2``↑`+`O_2` e. combination or synthesis reaction

 


TRUE \ FALSE

Electrolytic refining is a method in which a thin coating of a metal is done over another metal.


How is precipitate formation in a chemical reaction indicated?


A chemical equation is a statement that describes a chemical change in terms of


Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
To prevent rusting, a layer of ______ metal is applied on iron sheets.


Complete the statement by filling the gap using an  appropriate term from the terms given in the bracket.

(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)

An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.


Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.

Potassium fluoride


When electric current is passed through acidulated water ______ of water takes place. 


Give reason for the following:

Molybdenum is used in the manufacture of ammonia.


Name: Two carbonates do not produce carbon dioxide on heating.


Distinguish by dilute sulphuric acid.

Sodium sulphide and sodium sulphite?


Complete the table given below.

Addition of dil. H2SO4 to FeS  Odour of gas evolved  

Match the chemical reactions in List I with the appropriate answer in List II.

  List I   List II
1. \[\ce{XY⇌[heat]X + Y}\] A: Displacement reaction
2. \[\ce{XY->X + Y}\] B: Double decomposition
3. \[\ce{X+Y- + A+B^-->X+B- + A+Y-}\] C: Endothermic reaction
4. \[\ce{X + YZ->XZ + Y}\] D: Thermal dissociation
5. \[\ce{X + Y->[heat]XY -\Delta}\] E: Decomposition reaction

The percentage composition of Nitrogen in Ureas is ______.


Arrange the following statements in correct sequence:

  1. One side is water-loving and other water-hating molecules.
  2. When you agitate the cloth, the dirt is surrounded by many molecules and taken away from the cloth.
  3. The dirt surrounded by the detergent molecules floats in the water making it dirty.
  4. Finally, the cloth is clean.
  5. The detergent molecules have two sides.
  6. Water hating goes and joins with dirt and oil in the cloth while the water-loving joins with the water molecules.

Write word equations for two chemical reactions with the help of materials given in the box.

Air, copper sulphate, iron, vinegar, iron oxide, carbon dioxide, iron sulphate, copper, lime water, water

Galvanization is a process in which ______ is coated as a layer of iron.


Which is used as a catalyst during the process of hydrogenation of oils?


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