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Problem
Assertion :
K
+
\text{K}^+
K
+
and
NH
4
+
\text{NH}_4^+
NH
4
+
ions have many similarities in their test. Reason : Radius of
K
+
\text{K}^+
K
+
is almost equal to radius of
NH
4
+
\text{NH}_4^+
NH
4
+
.
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