Question

$Cu^{+}$ion is not stable in aqueous solution because

• A. Second ionization enthalpy of copper is less than the first ionization enthalpy
• B. Large value of second ionization enthalpy of copper is compensated by much more negative hydration energy of $Cu_{(aq)}^{2 +}$
• C. Hydration energy of $C{u^{+}}_{(aq)}$ is much more negative than that of $C{u^{2 +}}_{(aq)}$
• D. Many copper (I) compounds are unstable in aqueous solution and undergo disproportionation reaction

Answer 1

Answer: (B)

Large value of second ionization enthalpy of copper is compensated by much more negative hydration energy of $Cu_{(aq)}^{2 +}$

Answer 2

Large value of second ionization enthalpy of copper is compensated by much more negative hydration energy of $Cu_{(aq)}^{2 +}$