Which of the following complexes is/are square planar in shape ?
(I) $[N i (C N)_{4}]^{2 -}$ (II) $[M n C l_{4}]^{2 -}$ (III) $[Z n C l_{4}]^{2 -}$ (IV) $[N i (N H_{3})_{4}]^{2 +}$

I, II

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II, III

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Only IV

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I and IV

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Solution

The correct option is A I, II
$N i i n [N i (C N)_{4}]^{2 -} & M n i n [M n C l_{4}]^{2 -} a r e d s p^{2}$ hybridised

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