Statement I: Aluminium is amphoteric in nature.
Statement II: Aluminium dissolves in dil. HCl as well as in aqueous solution of `NaOH` evolving `H_2`

Options

A. If both Statement I and Statement II are true and Statement II is the correct explanation of Statement I.
B. If both Statement I and Statement II are true but Statement II is not the correct explanation for Statement I
C. If Statement I is true but Statement II is false.
D. If Statement I is false and Statement II is true.

Answer

To analyze the given statements regarding Aluminium, we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Understanding Statement I: Aluminium is amphoteric in nature.**
- Amphoteric substances can react with both acids and bases. Aluminium (Al) is known to exhibit amphoteric behavior due to its ability to react with both acidic and basic solutions.

2. **Understanding Statement II: Aluminium dissolves in dilute HCl as well as in aqueous solution of NaOH evolving H2.**
- When Aluminium reacts with dilute hydrochloric acid (HCl), it forms aluminium chloride (AlCl3) and hydrogen gas (H2):
\[ 2Al + 6HCl \rightarrow 2AlCl3 + 3H2 \uparrow \]
- When Aluminium reacts with sodium hydroxide (NaOH), it forms sodium aluminate (NaAlO2) and hydrogen gas (H2):
\[ 2Al + 2NaOH + 6H2O \rightarrow 2NaAl(OH)4 + 3H2 \uparrow \]

3. **Conclusion: Evaluating the statements.**
- Both statements are correct. Statement I correctly identifies Aluminium as amphoteric, and Statement II provides specific examples of Aluminium's reactions with an acid and a base, which supports the amphoteric nature described in Statement I.

4. **Final Answer:**
- Both Statement I and Statement II are true, and Statement II is the correct explanation of Statement I.