AIIMS2003Chemistry-Coordination Compounds

AIIMS 2003 Chemistry Shapes of Complex Ions MCQ Question

Type: MCQ-conceptual-Medium-Class 12

The ion which is not tetrahedral in shape is

A

BF₄⁻

B

NH₄⁺

C

Cu(NH₃)₄²⁺

D

NiCl₄²⁻

Correct Answer

Option C

Detailed Explanation

[Cu(NH3)4]2+ Cu2+ → 3d9 4s0 3d 4s 4p [Cu(NH3)4]2+ → dsp2 square planar One electron is shifted from 3d to 4p orbital.

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