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Assertion : beta- hydrogen atom of carbo...

Assertion : `beta`- hydrogen atom of carbonyl compounds is acidic in nature.
Reason : `beta`- hydrogen is directly attached to carbon next to carbonyl carbon.

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.

Text Solution

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The correct Answer is:
To solve the question regarding the assertion and reason about the acidity of beta-hydrogen atoms in carbonyl compounds, we will analyze both the assertion and the reason step by step. ### Step 1: Understanding the Assertion The assertion states that the beta-hydrogen atom of carbonyl compounds is acidic in nature. **Explanation**: - In carbonyl compounds (like aldehydes and ketones), the carbonyl group (C=O) is present. The carbon atom adjacent to the carbonyl carbon is referred to as the alpha carbon, and the carbon next to the alpha carbon is called the beta carbon. - The hydrogen atoms attached to the alpha carbon are known as alpha-hydrogens, and they are indeed acidic due to the presence of the electronegative oxygen in the carbonyl group, which can stabilize the negative charge when these hydrogens are removed as protons (H⁺). ### Step 2: Understanding the Reason The reason states that the beta-hydrogen is directly attached to the carbon next to the carbonyl carbon. **Explanation**: - The statement is misleading because it confuses the terms. The hydrogen atoms attached to the alpha carbon (the carbon directly adjacent to the carbonyl carbon) are the ones that are acidic, not the beta-hydrogens. - The beta-hydrogens are attached to the beta carbon, which is the carbon next to the alpha carbon, and they are not considered acidic in the same way that alpha-hydrogens are. ### Step 3: Conclusion Both the assertion and the reason are incorrect: - The assertion that beta-hydrogen is acidic is false. - The reason that beta-hydrogen is directly attached to the carbon next to the carbonyl carbon is misleading because it does not correctly identify the acidic hydrogens. Thus, the correct answer is that both the assertion and reason are false. ### Final Answer: Both the assertion and reason are false. ---
To solve the question regarding the assertion and reason about the acidity of beta-hydrogen atoms in carbonyl compounds, we will analyze both the assertion and the reason step by step. ### Step 1: Understanding the Assertion The assertion states that the beta-hydrogen atom of carbonyl compounds is acidic in nature. **Explanation**: - In carbonyl compounds (like aldehydes and ketones), the carbonyl group (C=O) is present. The carbon atom adjacent to the carbonyl carbon is referred to as the alpha carbon, and the carbon next to the alpha carbon is called the beta carbon. - The hydrogen atoms attached to the alpha carbon are known as alpha-hydrogens, and they are indeed acidic due to the presence of the electronegative oxygen in the carbonyl group, which can stabilize the negative charge when these hydrogens are removed as protons (H⁺). ...
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