Which of the following are diamagnetic? (Use [Ni(CN)4]^2- square planar, [NiCl4]^2- tetrahedral.)

JEE Main levelOne or more correct optionsDifficulty 2 of 3cc185

Which of the following are diamagnetic? (Use $[Ni (CN) X_{4}] X^{2 -}$ square planar, $[NiCl X_{4}] X^{2 -}$ tetrahedral.)

[Ni (CN) X_{4}] X^{2 -}

d s p^{2}

with all electrons paired.

[Zn (NH X_{3}) X_{4}] X^{2 +}

3 d^{10}

[Fe (CN) X_{6}] X^{4 -}

is low-spin

d^{6}

(

t_{2 g}^{6}

[NiCl X_{4}] X^{2 -}

has two unpaired electrons, so it is paramagnetic. Correct: 1, 2 and 4.