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

Give reason for the following:
Cotton clothes get burnt with concentrated sulphuric acid.

Give reason for the following:
H₂SO₄ cannot be prepared by heating sodium sulphate with conc. HCl or HNO₃

How are the following conversion brought about? Give equation and condition:
Dilute sulphuric acid to hydrogen.

How are the following conversion brought about? Give equation and condition:
Sodium chloride to hydrogen chloride.

How are the following conversion brought about? Give equation and condition:
Sucrose to sugar charcoal.

How are the following conversion brought about? Give equation and condition:
Oxalic acid to carbon monoxide.

Describe the reaction that show
Concentrated sulphuric acid is a non-volatile acid.

Describe the reaction that show
Concentrated sulphuric acid is a dehydrating agent.

Describe the reaction that show
Concentrated sulphuric acid behaves as oxidizing agent.

Describe the reaction that show
Dilute sulphuric acid behaves as dibasic acid.

Why is sulphuric acid known as king of chemicals and oil vitriol ?

Give examples of the use of sulphuric acid as
Non-volatile acid

Give examples of the use of sulphuric acid as
An oxidizing agent

How will you distinguish between dilute H₂SO₄ and conc. H₂SO₄ ?

Give main difference between drying agent and dehydrating agent.

Choose the current answer from the options given below :
When conc. H₂SO₄ comes in contact with sugar, it becomes black due to

Choose the current answer from the options given below :
The catalyst used for the oxidation of SO₂ to SO₃ in contact process is

Give reason for the following:
Concentrated sulphuric acid is kept in airtight bottles.

Name the anion [negative ion] present in the following compound:

Compound D when warmed with dilute H₂SO₄ gives a gas which turns acidified potassium dichromate solution green.

The following statement is correct only under certain conditions. Rewrite the statement including the appropriate conditions.
Oxalic acid reacts with sulphuric acid to produce carbon monoxide and carbon dioxide.