GENERAL KNOWLEDGE

Detailed explanation-1: -The metal zinc (Zn) displaces copper (Cu) from Copper sulphate because zinc is more reactive than copper. In contrast, copper is not able to displace zinc from Zinc sulphate because it is less reactive than zinc.

Detailed explanation-2: -Thus, zinc can replace copper from copper sulphate solution.

Detailed explanation-3: -CuSO4(aq) + Zn(s)→ ZnSO4(aq) + Cu(s) is an example of decomposition reaction.

Detailed explanation-4: -In a displacement reaction, a more reactive element displaces a less reactive metal from its salt. Zinc is more reactive than copper. Hence, copper will not displace zinc from zinc sulphate. Thus, the given statement is false.

Detailed explanation-5: -Answer: Zinc displaces copper from copper sulphate and generates zinc sulphate solution when added to CuSO4 solution because zinc is a more reactive metal that displaces less reactive metal from its solution. A color change from blue to colorless indicates this.