Question

From among the set of metals — sodium, zinc, iron, copper, silver, select the following

giving equations for each reaction :

(a) Two metals which will liberate hydrogen from water.

(b) One metal which is used to prepare hydrogen gas in the laboratory.

(c) One metal which will displace copper from copper sulphate solution.

(d) One metal which will not displace copper from copper sulphate solution.​

Answer 1

Answer:

(c) one metal which will displace copper from copper sulphate solutions

Answer 2

Answer:

a. Sodium, Zinc.

b. Zinc.

c. Iron.

d. Silver.

Explanation:

Granulated zinc

Granulated zinc is ideal for the preparation of hydrogen gas in chemical laboratories because it usually contains a small amount of copper, which has the ability to act as a catalyst to the associated chemical reaction and, therefore, increase the rate of the chemical reaction without actually participating in it.