Assertion : The functional group present in alcohols is -OH.
Reaction : It is the same group as present in water, hence water and alcohol have similar properties.

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 analyze the assertion and reaction provided in the question, let's break it down step by step.

### Step 1: Understanding the Assertion
The assertion states that the functional group present in alcohols is -OH. This is correct because the -OH group is known as the hydroxyl group, which is characteristic of alcohols.

### Step 2: Understanding the Reaction
The reaction claims that since the -OH group is also present in water (H₂O), water and alcohol have similar properties. While both substances contain the -OH group, their overall properties are different due to the presence of carbon in alcohols.

### Step 3: Analyzing the Functional Group
Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In the case of alcohols, the -OH group is the functional group that defines their chemical behavior.

### Step 4: Comparing Properties of Water and Alcohol
While both water and alcohol contain the -OH group, their properties differ significantly. Water is a simple molecule (H₂O), while alcohols are organic compounds that contain carbon chains along with the -OH group. The presence of carbon in alcohols leads to different physical and chemical properties compared to water.

### Step 5: Conclusion
Thus, the assertion is true, but the reasoning provided is incorrect. Although both water and alcohols contain the -OH group, their properties are not similar due to the presence of carbon in alcohols.

### Final Answer:
- Assertion: True (The functional group present in alcohols is -OH).
- Reaction: False (Water and alcohol do not have similar properties despite having the same functional group).

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