Question

Assertion (A): A piece of Zinc metal gets reddish brown coating when kept in copper sulphate solution for some time. 

Reason (R): Copper is more reactive metal than Zinc.

(A) Both (A) and (R) are true and (R) is the correct explanation of (A). 

(B) Both (A) and (R) are true and (R) is not correct explanation of (A). 

(C) (A) is true, but (R) is false. 

(D) (A) is false, but (R) is true.

Answer 1

The correct option is (C) (A) is true, but (R) is false.

When a strip of zinc metal is put in copper sulphate solution, then the blue colour of copper sulphate solution fades gradually and red brown coating of copper is deposited on zinc strip.

Zinc is more reactive than copper and hence copper sulphate cannot be stored in a zinc vessel.