Question

what will happen when zinc granules are added in ferrous sulphate solution ?

Answer 1

Answer: The green color of the ferrous sulfate solution looses its color.

Explanation:

A single displacement reaction is defined as the reaction in which a more reactive metal displaces a less reactive metal from its chemical reaction. The reactivity is determined on the basis of reactivity series. The metals which lie above in the series are more reactive than the ones which lie below in the series.

When zinc granules are added to ferrous sulfate, the zinc metal displaces iron metal from its chemical reaction and it decolorize the solution.

Zinc is more reactive metal than iron as seen from the reactivity series.

The chemical equation for the reaction is given as:

$Zn(s)+FeSO_4(aq.)\rightarrow Fe(s)+ZnSO_4(aq.)$

Answer 2

When zinc granules are added to a solution of iron sulphur then the colour fades and become almost colorless and there are greenish black deposit of iron.