Radha arranged three set-ups as shown in the following figures. She observed that reactions take place in all the three experiments. Answer the questions that follow:

Write the reactions involved in all the three experiments.

Explanation

(I): `Fe + Cu^(2+) to Fe^(2+) + Cu`
(II): `Zn + Fe^(2+) to Zn^(2+) + Fe`
(III): `Y + Zn^(2+) to Y^(2+) + Zn`