Aqueous solution of `Ni^(2+)` contains `[Ni(H_(2)O)_(6)]^(2+)` and its magnetic moment is 2.83 BM. When ammonia is added in it, comment on the magnetic moment of solution:

Options

A. It will remain same
B. it increases from 2.83 BM
C. it decreases from 2.83 BM
D. It cannot be predicated theoretically

Answer

A

Explanation

`underset(sp^(3)d^(2)" Hyb. ",mu_(e f f)=2.8BM)([Ni(H_(2)O)_(6)]^(2+))+6NH_(2) hArr underset(sp^(3)d^(2)" Hyb. "mu_(e f f)=2.8BM)([Ni(NH_(3))_(6)]^(2+))+6H_(2)O`