Assertion : Mixture of `CH_(3)COOH` and `CH_(3)COONH_(4)` is an example of acidic buffer.
Reason : Acidic buffer contains equimolar mixture of weak acid and its salt with weak base.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reasonb is false
D. If both assertion and reason are false.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states that a mixture of \( CH_3COOH \) (acetic acid) and \( CH_3COONH_4 \) (ammonium acetate) is an example of an acidic buffer.

- **Buffer Definition**: A buffer solution is one that resists changes in pH upon the addition of small amounts of acid or base.
- **Acidic Buffer**: An acidic buffer specifically consists of a weak acid and its salt with a strong base.

In this case, \( CH_3COOH \) is a weak acid, but \( CH_3COONH_4 \) is the salt of a weak base (ammonium hydroxide, \( NH_4OH \)). Therefore, the mixture does not fit the definition of an acidic buffer because it does not contain a salt of a strong base.

### Conclusion for Assertion:
The assertion is **false**.

### Step 2: Analyze the Reason
The reason states that an acidic buffer contains an equimolar mixture of a weak acid and its salt with a weak base.

- **Correct Definition**: An acidic buffer should contain a weak acid and its salt with a **strong base**. The reason incorrectly mentions a weak base instead of a strong base.

### Conclusion for Reason:
The reason is also **false**.

### Final Conclusion:
Both the assertion and the reason are false. Therefore, the correct answer is that both the assertion and the reason are incorrect.

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