Assertion: `S_(N)1` reaction is basically a solvolysis reaction.
Reason: Polar protic solvents help the substrate to ionize and by the way get involved in `S_(N)1` reaction.

Options

A. If both assertionn and reason are true, and reason is the true explanation of the assertion.
B. If both assertion and reason are true, but reason is not the true explanation of the assertion.
C. If assertion is true, but reason is false.
D. If both assertion and Reason are false.

Answer

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

### Step 1: Understanding the Assertion
The assertion states that an \( S_N1 \) reaction is basically a solvolysis reaction.

- **Explanation**: In an \( S_N1 \) reaction, the first step involves the ionization of the substrate to form a carbocation. This process is facilitated by the solvent, which is typically a polar protic solvent. The term "solvolysis" refers to a reaction where the solvent plays a key role in breaking the bond of the substrate, leading to the formation of ions.

### Step 2: Understanding the Reason
The reason states that polar protic solvents help the substrate to ionize and thus get involved in the \( S_N1 \) reaction.

- **Explanation**: Polar protic solvents, such as water or alcohols, stabilize the carbocation formed during the ionization step of the \( S_N1 \) mechanism. They can solvate the ions and help in the dissociation of the substrate, which is crucial for the \( S_N1 \) reaction to proceed. This stabilization is essential for the formation of the carbocation intermediate.

### Step 3: Linking Assertion and Reason
Now we need to determine if the reason correctly explains the assertion.

- **Analysis**: The assertion is correct because \( S_N1 \) reactions are indeed solvolysis reactions. The reason is also correct, as polar protic solvents do facilitate the ionization of the substrate. Moreover, the reason provides a valid explanation for the assertion, as it describes the role of polar protic solvents in the \( S_N1 \) mechanism.

### Conclusion
Both the assertion and reason are true, and the reason correctly explains the assertion. Therefore, the correct conclusion is that both statements are true, and the reason is the correct explanation of the assertion.

### Final Answer
Both the assertion and the reason are true, and the reason is the correct explanation of the assertion.

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