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

How will you prepare the following from nitric acid?

Ferric nitrate

Sulphuric acid is manufactured by contact process.
write the main reactions of this process.

How will you prepare the following from nitric acid?

Aqua regia

Why the impurity of arsenic oxide must be removed before passing the mixture of SO₂ and air through the catalytic chamber?

Name a metal nitrate which on heating is changed into metal oxide.

Name a metal nitrate which on heating is changed into metal.

Name a solution which absorbs nitric oxide.

Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared?

Why is sulphuric acid used in the preparation of HCl and HNO₃? Give equations in both cases.

Give the chemical name and formula of the substance formed as a brown ring in the test for nitrate radical. 

Mention three important uses of nitric acid. Give the property of nitric acid involved in the use. 

What property of conc. H₂SO₄ is made use of in the following case? Give an equation for the reaction in this case:

In the production of HCl gas when it reacts with chloride.

The nitrate salt which does not give a mixture of NO₂ and O₂ on heating is ______.

What property of conc. H₂SO₄ is made use of in the following case? Give an equation for the reaction in this case:

In the preparation of CO and HCOOH.

The chemical used in the brown ring test is ______.

Explain with the help of a balanced equation the brown ring test for nitric acid.

What property of conc. H₂SO₄ is made use of in the following case? Give an equation for the reaction in this case:

As a source of hydrogen by diluting it and adding a strip of magnesium.

What property of conc. H₂SO₄ is made use of in the following case? Give an equation for the reaction in this case:

In the preparation of sulphur dioxide by warming a mixture of conc. sulphuric acid and copper turnings.

What property of conc. \[\ce{H2SO4}\] is made use of the following case? Give an equation for the reaction in given case:
hydrogen sulphide gas is passed through concentrated sulphuric acid.

Why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?