(English Medium) ICSE Class 10 - CISCE Important Questions

Differentiate between the following pair based on the criteria given in the bracket:

Sulphuric acid and hydrochloric acid [type of salts formed]

Convert the following reaction into a balanced chemical equation:

Ferrous sulphide to hydrogen sulphide using hydrochloric acid.

The following table is related to an industrial process of an acid.

Identify (a), (b) and (c).

Assertion (A): Dry hydrogen chloride gas is collected by the upward displacement of air.

Reason (R): Hydrogen chloride gas is lighter than air.

The ratio between the volumes occupied by 4.4 grams of carbon dioxide and 2 grams of hydrogen gas is ______.

______ does not form an acid salt.

Write a balanced chemical equation for the following:

Reaction of Ammonia with heated copper oxide.

State one relevant observation for given reactions:

Burning of ammonia in air.

Give a balanced chemical equation for Catalytic oxidation of Ammonia

Give a balanced chemical equation for Reaction of Ammonia with Nitric acid

The equation 4NH₃ + 5O₂ → 4NO + 6 H₂O, represents the catalytic oxidation of ammonia. If 100 cm³ of ammonia is used calculate the volume of oxygen required to oxidize the ammonia completely

Name the gas evolved when the following mixtures are heated:

Calcium hydroxide and Ammonium Chloride

Write balanced chemical equations for the following:

When the excess of ammonia is treated with chlorine.

Write balanced chemical equations for the following:

An equation to illustrate the reducing nature of ammonia.

Identify the cations in the following case :

NH₄OH Solution, when added to the Solution (B), gives white ppt which does not dissolve in excess.

Identify the cations in the following case:

NaOH Solution, when added to Solution (C), gives white ppt which is insoluble in excess

Select from the list the gas that matches the description given in case

[ammonia, ethane, hydrogen chloride, hydrogen sulfide, ethyne]

This gas is used as a reducing agent in reducing copper oxide to copper

State one relevant observation for the following

When ammonia gas is burnt in an atmosphere of excess oxygen.

The acid which is prepared by catalytic oxidation of ammonia.

Give balanced chemical equations for Reaction of ammonia with excess chlorine.