E
Editor
Sep 18, 2022
Which one has valency other than one?
Difficulty: Easy
A:
$\rm{Br\,\,\,in\,\,\,Br_{2}O} $
B:
$\rm{K\,\,\,in\,\,\,KCl} $
C:
$\rm{Mn\,\,\,in\,\,\,KMnO_{4}} $
D:
$\rm{Na\,\,\,in\,\,\,NaCl} $
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ID: 63273dbdca83163ac3a16ed3