Name the following:
(i) Divalent ion of first transition series having maximum magnetic moment.
(ii) Coloured ion out of `Cu^+` or `Cu^(2+)`
(iii) Two ions of first transition series having zero magnetic moment.

Explanation

`(i) Mn^(2+) , (ii) Cu^(2+) , (iii) Sc^(3+) ,Zn^(2+)`