Question

Statement 1:$C{u}_{(aq)}^{+}$ has less stable nature than $C{u}_{(aq)}^{2+}$ but $F{e}_{(aq.)}^{3+}$ is more stable than $F{e}_{(aq.)}^{2+}$
Statement 2: Half-filled and completely filled, sub-shells are more stable.

• A. If both Statement $1$ and Statement $2$ are true and the statement $2$ is the correct explanation of the statement $1$.
• B. If both Statement $1$ and Statement $2$ are true but statement $2$ is not the correct explanation of the statement $1$.
• C. If Statement $1$ is true but Statement $2$ is false.
• D. If Statement $1$ is false but Statement $2$ is true

Answer 1

Answer: (B)

In $C{u}^{+}$, no double outer shell has $3d^{10}$ or completely filled configuration but hydration energy of $C{u}^{+}(aq.)$ is more.