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Question:

Which of the following complex is optically inactive?

[RhCl(CO)(PPh3)(NH3)]

[Fe(C2O4)3]3-

[Fe(en)2Cl2]

[Pd(en)2Cl2]

Solution:

Correct option is A. [RhCl(CO)(PPh3)(NH3)]
Solution:- (A) [RhCl(CO)(PPh3)(NH3)]
[RhCl(CO)(PPh3)(NH3)] is a square planar complex and thus is inactive. It has a molecular plane of symmetry so it is optically inactive.