Identify the oxidation states of titinium (Z=22) and copper (Z=29) in their colourless compounds.

Options

A. `Ti^(3+), Cu^(2+)`
B. `Ti^(2+), Cu^(2+)`
C. `Ti^(4+), Cu^(1+)`
D. `Ti^(4+), Cu^(2+)`

Answer

C

Explanation

`Ti^(4+)to 1s^2 2s^2 2p^6 3s^2 3p^6 4s^0 3d^0`
(No unpaired electron in d orbital )
`Cu^(1+)to 1s^2 2s^2 2p^6 4s^23d^10`
(No unpaired electron in d orbital )
If no unparied electron is present in d orbital of the transition meta or ion then its solution becomes colourless.