1.

The pair of ions which do not have same number of unpaired electrons is

Answer»

`Mn^(2+) and FE^(3+)`
`Ti^(2+) and Ni^(2+)`
`Cu^(2+) and Ti^(3+)`
`Fe^(2+) and Ni^(2+)`

SOLUTION :`Fe^(2+) and Ni^(2+)`


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