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

Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.

What would happen if
Calcium oxide is used to dry hydrogen chloride.

State the use of aqua-regia.

What is the function of HCI in preparation of aqua-regia?

Fill in the blank:
On addition of silver nitrate to hydrochloric acid ___________ precipitate is formed which is soluble in  ____________

1. What must be added to sodium chloride to prepare hydrogen chloride?
2. Write the equation for the reaction which takes place in question (a).

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