AIPMT PRELIMS2005Chemistry-Coordination Compounds
AIPMT PRELIMS 2005 Chemistry Crystal Field Theory MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Which one of the following is an inner orbital complex as well as diamagnetic in behaviour? (Atomic no.: Zn = 30, Cr = 24, Co = 27, Ni = 28)
A
[Zn (NH₃)₆]²⁺
B
[Cr (NH₃)₆]³⁺
C
[Co (NH₃)₆]³⁺
D
[Ni (NH₃)₆]²⁺
Correct Answer
Option C
Detailed Explanation
[Ni (NH₃)₆]²⁺ is an inner orbital complex with d²sp³ hybridization and is diamagnetic due to paired electrons.
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