Question

Hybridisation, shape and magnetic moment of ${[Ni{(CN)}_4]}^{2-}$ ion

• A. $ds{p}^2,$ square planar, zero
• B. $ds{p}^2,$ square planar, 1.73
• C. $s{p}^3{d}^2,$ octahedral, zero
• D. $d^{2}s{p}^3,$ octahedral, 1.73

Answer 1

Answer: (A)

${[Ni{(CN)}_4]}^{2-}$ ion has $ds{p}^2$ hybridisation, zero magnetic moment and square planar structure.
It has no unpaired electron hence, its magnetic moment is zero.