Assertion:The solutions which show large positive deviations from Raoult's law form maximum boiling azeotropes.
Reason : 95% aqueous solution of ethanol is maximum boiling azeotrope

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 reason 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: Understand the Assertion
The assertion states: "The solutions which show large positive deviations from Raoult's law form maximum boiling azeotropes."

- **Explanation**: In solutions that exhibit large positive deviations from Raoult's law, the vapor pressure of the solution is higher than what Raoult's law would predict. This occurs when the intermolecular forces between the different components (A and B) are weaker than the forces within the pure components (A-A and B-B). In such cases, the boiling point of the solution is lower than that of the individual components, leading to the formation of minimum boiling azeotropes, not maximum boiling azeotropes.

### Step 2: Understand the Reason
The reason states: "95% aqueous solution of ethanol is a maximum boiling azeotrope."

- **Explanation**: The 95% ethanol solution in water is actually a minimum boiling azeotrope. This means that at this specific composition, the solution has a lower boiling point than either of the pure components. Therefore, this statement is incorrect.

### Step 3: Conclusion
Since both the assertion and the reason are incorrect, we conclude that:

- **Assertion**: False
- **Reason**: False

Thus, the correct answer is that both the assertion and the reason are false.

### Final Answer
Both the assertion and the reason are false. Therefore, the correct option is D.