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

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.

Name the catalyst used in the process.

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Hydrogen

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Carbon dioxide

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Sulphur dioxide

What would you see, when a crystal of CuSO₄.5H₂O is placed in concentrated sulphuric acid? Give reason to explain your observation.