Question

Standard electrode potentials are : Fe⁺²/Fe
Eº = – 0.44; Fe⁺³/Fe⁺² Eº = + 0.77 ; If Fe⁺², Fe⁺³
and Fe blocks are kept together, then
(a) Fe⁺² increases
(b) Fe⁺³ decreases
(c)Fe⁺² remains unchanged
Fe⁺³
(d) Fe⁺² decreases

Answer 1

Answer:

a. will be correct answers

Answer 2

(b) Fe⁺³ decreases

Explanation:

Conversion of Fe2+ to Fe is non-spontaneous while converting Fe3+ to Fe2+ is spontaneous.

So Fe3+ will be spontaneously converted to Fe2+. So, Fe3+ will decrease.

Hence Option B is the answer.