Among the following pairs of ions the lower oxidation state in aqueous solution is more stable than the other in

Options

A. `Ti^(+), Ti^(3+)`
B. `Cu^(+), Cu^(2+)`
C. `Cr^(2+), Cu^(3+)`
D. `V^(2+),VO^(2+)`

Answer

A

Explanation

`Ti^(+)` is more stable than `Ti^(3+)` because only valence `6p^(1)` is to be removed and valance `6s^(2)` electrons impart stability to the ions on account of inert pair effect.