Question

3. In a displacement reaction, which of the following can displace zinc from a solution of zinc II sulphate? (a) Iron (b) Copper (c) Calcium (d) Silver​

Answer 1

Answer:

calcium

Explanation:

calcium is more reactive than zinc

Answer 2

Answer:
(c) Calcium

Explanation:

In a displacement reaction, a more reactive metal displaces a less reactive metal. So, among the four given metals, only calcium is more reactive than zinc. Therefore, only Calcium can displace zinc from the solution of Zinc II Sulphate.
Chem equation:

Ca + ZnSO4 => CaSO4 + Zn