D-And F-Block Elements Ques 58

Question: Which one of the following compounds is not coloured

[AIIMS 1997]

Options:

A) $ Na_2CuCl_4 $

B) $ Na_2CdCl_4 $

C) $ K_4Fe{{(CN)}_6} $

D) $ K_3Fe{{(CN)}_6} $

Show Answer

Answer:

Correct Answer: B

Solution:

$ Na_2CdCl_4 $ - no unpaired electrons.



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