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QAIPM-2001-Ch-2895: NEET 2001 Chemistry - Class 12 AIPM-2001-Ch-2895 Solution: Which statement is incorrect?

Which statement is incorrect?

Multiple Choice Options

A $Ni(CO)_4$ - tetrahedral, paramagnetic
B $Ni(CN)_4^{2-}$ - square planar, diamagnetic
C $Ni(CO)_4$ - tetrahedral, diamagnetic
D $[Ni(Cl)_4]^{2-}$ - tetrahedral, paramagnetic.

Step-by-Step Verified Solution

In Ni(CO) 4 - , Ni in zero oxidation state Ni(0) = [Ar] 3d 8 4s 2 It has no unpaired electron so acts as diamagnetic and has tetrahedral structure.

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