Write the balanced chemical equation to prepare ammonia gas in the laboratory by using an alkali.

Ammonia gas is obtained by treating ammonium chloride with calcium hydroxide. The balanced chemical equation is: Ca OH 2 Slaked lime + 2 NH 4 Cl Ammonium chloride → CaCl 2 + 2 H 2 O + 3 NH 3 ↑ Ammonia

State why for the preparation of nitric acid, the complete apparatus is made up of glass.

The apparatus used for the laboratory preparation of nitric acid are made of glass completely because the vapours of nitric acid are highly corrosive. They attack rubber, cork and plastics etc.

What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of nitric acid?

In the preparation of nitric acid, sodium sulphate salt is formed when the sodium nitrate and concentrated sulphuric acid are heated below 200 ° C . NaNO 3 + H 2 SO 4 Conc . → < 200 ° C NaHSO 4 Sodium bisulphate + HNO 3

Name the gas that is produced in the following case. Sulphur is oxidized by concentrated nitric acid.

When the nitric acid reacts with sulphur, nitric acid oxidizes sulphur to sulphuric acid and water is formed with the release of the nitrogen dioxide gas. S + 6 HNO 3 → H 2 SO 4 + 2 H 2 O + 6 NO 2

E M B I B E

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 31

HARD

10th ICSE

IMPORTANT

Earn 100

Give the balanced chemical equation.
The action of warm water on magnesium nitride.

Important Questions on Study of Compounds

HARD

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 32

Name the other ion formed when ammonia dissolves in water. Give one test that can be used to detect the presence of the ion produced.

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 34

Give a balanced chemical equation.
The action of heat on a mixture of copper and concentrated nitric acid.

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 35

Write the balanced chemical equation.

The reaction of concentrated sulphuric acid on carbon.

HARD

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 36

Write any two conditions for the conversion of sulphur dioxide to sulphur trioxide.

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 37

Give one equation to show the following properties of sulphuric acid.
Dehydrating property.

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 37

Give one equation to show the following property of sulphuric acid:
Acidic nature

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 37

Give one equation to show the following property of sulphuric acid:

As a non-volatile acid

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 8 - Study of Compounds>ARCHIVES*(Last 6 Years)>Q 38

Identify the following substance which are underlined.
A gas which does not conduct electricity in the liquid state but conducts electricity when dissolved in water.