alleryWhen zinc is added to $\mathrm{CuSO_4}$ copper gets ppt. due to
AComplex formation
BOxidation of copper ions
CHydrolysis of copper sulphate
DReduction of copper ions
Answer & Solution
Correct answer: D. Reduction of copper ions
$\mathrm{Zn}$ is more reactive than $\mathrm{Cu}$, so it displaces copper from copper sulfate solution.
$$\mathrm{Zn + CuSO_4 \rightarrow ZnSO_4 + Cu}$$
Here, $\mathrm{Cu^{2+}}$ gains electrons and forms copper metal, so the process is reduction of copper ions.
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