Assertion (A): The "spin only” magnetic moment [in units of Bohr magneton, (`mu_(B)`)] of `Ni^(2+)` in aqueous solution would be (atomic number Ni= 28) 2.84 BM
Reason (R): The metal ion has 2 unpaired electrons

Options

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true and R is not the correct explanation of A
C. A is true but Ris false
D. A is false but R is true

Answer

A