(English Medium) ICSE Class 10 - CISCE Important Questions

 Name the gas evolved in each of the following cases :
Ethene undergoes hydrogenation reaction. 

Name the gas evolved in each of the following cases :
Ammonia reacts with heated copper oxide.

Study the flow chart given and give balanced equations to represent the reactions A, B and C:

\[\ce{Mg3N2 ->[A] NH3 <=>[B][C] NH4Cl}\]

 Copy and complete the following table which refers to the industrial method for the preparation of ammonia and sulphuric acid: 

Write a balanced chemical equation for the following:

When an excess of ammonia is treated with chlorine.

State the following:

Products are formed when ammonia is burnt in excess of oxygen.

Write a balanced equation for the following conversion:

Nitrogen trichloride from ammonia.

Identify the terms for the following:

The experiment which demonstrates high solubility of ammonia gas.

The catalyst used in the oxidation of ammonia is ______.

The product formed when ammonia reacts with oxygen is ______.

The metallic hydroxide which forms a deep inky blue solution with excess ammonium hydroxide solution is ______.

State the terms/process for the following:

The name of the process by which Ammonia is manufactured on a large scale.

State a relevant reason for the following:

Ammonia gas is not collected over water.

State one relevant observation for the following:

Burning of ammonia in excess of oxygen.

A compound which undergoes thermal dissociation.

On passing ammonia gas over heated copper oxide for some time, a reddish-brown residue is left behind. What property of ammonia is demonstrated here?

Ammonia burns in oxygen, as shown below.

\[\ce{4NH3 + 3O2 -> 2N2 + 6H2O}\]

If 240 cc of ammonia is burnt in 300 cc of oxygen, find out the composition of the resultant gaseous mixture at room temperature.

Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. What will she observe?

Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide.

Write a balanced chemical equation for the Black copper oxide changes to a reddish brown/pink copper reaction.

Write a balanced chemical equation for the following:

Action of cold and dilute Nitric acid on Copper