(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Chemistry

A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution:

Complete the table by writing the gas evolved in each case and its odour.

Write balanced equation for the following reaction:
Copper oxide and dilute hydrochloric acid.

Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.

What is the property of concentrated sulphuric acid (H₂SO₄) which allows it to be used in the preparation of hydrogen chloride (HCl) and nitric acid (HNO₃)?

Write a fully balanced of the following case :
Red lead is warmed with concentrated hydrochloric acid.

Write a fully balanced of the following case :
Magnesium metal is treated with dilute hydrochloric acid.

Name the following :
Gas produced in air during lighting.

Name the Following: 
Gas obtained by treating manganese with 1% nirtric acid.

Name the Following:
Salt referred to as chile saltpeter.

Name the Following:
Salt used in the laboratory to prepare nitric acid

Name the Following:
Product obtained by heating concentrated nitric acid.

Name the Following:
Two coloured nitrates.

What is meant by the following term?

Fuming nitric acid

What is meant by the following term?

Decrepitation

How is nitric acid prepared in a laboratory?

What is the purpose of Conc. H₂SO₄ in the above preparation?

Why is the temperature maintained at 200°C in the above reaction?

Can we use conc. HCl in place of Conc. H₂SO₄ ?

1. Name the process used for the manufacture of nitric acid.
2. What are the reactants required for it and what are their sources?
3. In which ratio reactants are taken in this process?
4. Name the catalyst used in the process.
5. What is the oxidizing agent in this process?
6. Write the equations involved.

What are the reactants required for Ostwald process and what are their sources?