Which of the following element does not show variable valency - Vidyadip

MCQ

Which of the following element does not show variable valency

A
$Ni$
✓
$Zn$
C
$Cu$
D
$Mn$

✓

Answer

Correct option: B.

$Zn$

b
(b)The electronic configuration of $Zn$ is $(Ar)3{d^{10}}4{s^2}$. Hence due to complete $d-$ subshell, it does not show variable valency.

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