Question

Classify cation on basis of their valency :Ca2+,Cu2+,NH4+,Al3+

Answer 1

Hi friend.. Here's ur answer...
Valency 1 = NH4+
Valency 2= Ca2+,Cu2+
Valence 3= Al3+
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Answer 2

on the basis of their valency
Monovalent cation is NH4+
Divalent cation is Cu2+ and ca2+
trivalent cation is Al3+


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@ujjawal