Question

The reaction of lithium with water is less vigorous than that of sodium. It is due to \[ \begin{aligned} \text{I. }& \text{Most negative }E^\circ\text{ value of }\mathrm{Li^+/Li}\\ \text{II. }& \text{Small size of Li}\\ \text{III. }& \text{Very high hydration energy of }\mathrm{Li^+} \end{aligned} \] The correct answer is

• A. I, III only
• B. II, III only
• C. I, II only
• D. I, II, III

Hint:

Lithium behaves anomalously because of \[ \boxed{ \text{small size and high hydration energy of }\mathrm{Li^+}. } \] Hence, lithium reacts less vigorously with water than sodium.

Answer 1

The Correct Option is B