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

Give balanced equation to prove that ammonia Has the element nitrogen in it.

State one reason why tap water is not used to prepare a solution of silver nitrate in the laboratory.

Differentiate between:

Reaction of excess ammonia with chlorine and NH₃  with excess chlorine

Write a balanced equation for the reaction of zinc and dilute hydrochloric acid.

Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

ZnCl₂

Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

FeSO₄

Why is hydrogen chloride not collected over water?

Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

FeCl₃

Correct the following statement:
Hydrochloric acid is prepared in the laboratory by passing hydrogen chloride directly through water.

Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

 Pb(NO₃)₂

Aqua regia is a mixture of ______.

Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

 CuSO₄

Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

CrCl₃

Choose the correct answer from the options given below :

Ammonia reacts with excess chlorine to form

In the laboratory preparation of hydrochloric acid, HCl gas is dissolved in water.

1. Draw a diagram to show the arrangement used for the absorption of HCl gas in water.
   
2. State why such an arrangement is necessary? Give two reasons for the same.
3. Write the chemical equation for the laboratory preparation of HCl gas when the reaction is:
   1. Below 200°C
   2. Above 200°C

Choose the correct answer from the options given below :

Nessler's reagent is an alkaline solution of

State one appropriate observation of the following:

Copper sulphate is treated with dilute hydrochloric acid.

Complete and balance the equation: CuO(heated) + NH_{3 →}