Question

Identify the possible reaction

$\mathrm{Zn}+{\mathrm{CuSO}}_4\to {\mathrm{ZnSO}}_4+\mathrm{Cu}$

Answer 1

Reactivity Series: The reactivity series is the tabular arrangement of metal in the decreasing order of their reactivity from top to the bottom.

• According to the reactivity series, the metals placed above the others are more reactive than the ones that are below them.
• More reactive metals can displace less reactive metals from their compounds.

Analyzing the given reaction:

• According to the reactivity series, Zinc is more reactive than copper as zinc comes first in the series.
• When zinc is added to copper sulphate solution, copper is replaced by zinc and forms zinc sulphate.

$\underset{\mathrm{Zinc}}{\mathrm{Zn}\left(\mathrm{s}\right)}+\underset{\mathrm{Copper}\mathrm{Sulphate}}{{\mathrm{CuSO}}_4\left(\mathrm{aq}\right)}\to \underset{\mathrm{Zinc}\mathrm{Sulphate}}{{\mathrm{ZnSO}}_4\left(\mathrm{aq}\right)}+\underset{\mathrm{Copper}}{\mathrm{Cu}\left(\mathrm{s}\right)}$

• The color of the solution changes from blue to colorless during the reaction.
• This is a single displacement reaction.

Hence, given reaction is feasible.