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Problem
Problem
Assertion
: Aquated copper (I) cation undergoes disproportionation as :
2
Cu
(
aq.
)
+
→
Cu
(
aq.
)
2
+
+
Cu
2\text{Cu}_{(\text{aq.})}^+ \rightarrow \text{Cu}_{(\text{aq.})}^{2+} + \text{Cu}
2
Cu
(
aq.
)
+
→
Cu
(
aq.
)
2
+
+
Cu
Reason
: Hydration energy of
Cu
2
+
\text{Cu}^{2+}
Cu
2
+
is higher than that of
Cu
+
\text{Cu}^+
Cu
+
which compensates second ionisation energy of Cu.
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