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

Options

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

Answer

A

Explanation

`Ti^(+)` ions are more stable than `Tl^(+)` and thus, `Tl^(3+)` inos change to `Tl^(+)` ion therby acting as oxidising agents.
`Tl^(3+)` compounds `+ 2e rarr Tl^(+)` compounds.
less stable oxidisisng agent) (more stable oxidising agent)