D-And F-Block Elements Ques 314

Question: Which of the following element does not show variable valency

[MP PMT 2003]

Options:

A) Ni

B) Zn

C) Cu

D) Mn

Show Answer

Answer:

Correct Answer: B

Solution:

The electronic configuration of $ Zn $ is $ (Ar)3d^{10}4s^{2} $ .

Hence due to complete d-subshell, it does not show variable valency.



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