A : Beryllium hydroxide is basic in nature only
R : It reacts with acid only and not with base.

Options

A. If both Assertion & Reason are true and the reason is the correct explanantion of the assertion, then mark (1).
B. If both Assertion & Reason are true and the reason is the correct explanantion of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false. Them mark (3).
D. If both Assertion and reason are false statement, then mark (4).

Answer

To solve the question regarding the assertion and reason about beryllium hydroxide, we will analyze both statements step by step.

### Step 1: Understanding the Assertion
**Assertion (A):** Beryllium hydroxide is basic in nature only.

- Beryllium hydroxide (Be(OH)₂) is not solely basic; it has amphoteric properties. This means it can react with both acids and bases. Therefore, the assertion is **false**.

### Step 2: Understanding the Reason
**Reason (R):** It reacts with acid only and not with base.

- The reason states that beryllium hydroxide reacts only with acids and not with bases, which is incorrect. Beryllium hydroxide can react with both acids and bases. For example:
- When beryllium hydroxide reacts with hydrochloric acid (HCl), it forms beryllium chloride (BeCl₂) and water.
- When it reacts with sodium hydroxide (NaOH), it forms sodium beryllate and releases hydrogen gas.

Thus, the reason is also **false**.

### Step 3: Conclusion
Since both the assertion and the reason are false, the correct option is that both A and R are false statements.

### Final Answer
Both assertion and reason are false.

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