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

Name two sulphates which are insoluble.

Name a basic salt.

Name an acidic salt.

Name a mixed salt.

Name a complex salt.

Name a double salt.

Name a yellow monoxide that dissolves in hot and concentrated caustic alkali.

Classify the following solutions as acids, bases or salts.

Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H₂SO₄ and HNO₃

Distinguish by adding:
(a) sodium hydroxide solution and
(b) Ammonium hydroxide solution to
(i) Calcium salt solution and lead salt solution
(ii) Lead salt solution and ferrous salt solution
(iii) copper salt solution and ferrous salt solution
(iv) Fe (II) salt solution and Fe (III) Salt solution
(v) Ferrous nitrate and lead nitrate

What do you observe when ammonium salt is heated with caustic soda solution?

Explain why anhydrous HCl is a poor conductor while aqueous HCl is an excellent conductor.

Write an equation for the reaction of hydrochloric acid on the silver nitrate solution.

Write an equation for the reaction of hydrochloric acid on magnesium foil.

Write an equation for the reaction of hydrochloric acid on caustic soda solution.

Write an equation for the reaction of hydrochloric acid on zinc carbonate.

Write an equation for the reaction of aqueous hydrochloric acid on lead nitrate solution.

Write an equation for the reaction of hydrochloric acid on copper oxide.

Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.

Explain why dilute hydrochloric acid cannot be concentrated by boiling beyond 22.2%.

Give reason for the following:
An aqueous solution of chlorine in acidic in nature
Hint : Cl₂ + H₂O ⟶ HCl +HClO