Assertion (A) : `Fe^(3+)` (g) ion is more stable than `Fe^(2+)(g)` ion.
Reason (R) : `Fe^(3+)` ion has more number of unpaired electrons than `Fe^(2+)` ion.

Options

A. if both assertion and reason are correct and reason is correct explanation for assertion .
B. If both assertion and reason are correct but reason in not correct explanation for assertion.
C. If assertion is correct but reason is incorrect.
D. If both assertion and reason are incorrect.

Answer

C

Explanation

Correct reason. In `Fe^(3+)`ion. all the five 3d orbitals are half filled while they are not in `Fe^(2+)`ion.