Coordination CompoundHardBloom L3

Question

Each of the following obey Sidgwick effective atomic number rule except

Options

A.[Cr(CO)6]
B.[Co(NH3)6]3+
C.[Ni(NH3)6]2+
D.[PtCl6]2–

Solution

Sol. [Ni(NH3)6]2+ does not follow Sedgwick effective atomic number rule.

EAN = 28 – 2 + 6 × 2

= 38

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