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In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Hydroxyketones are not directly used in grrignard reaction.
Reason(R): Grignard reagent reacts with hydroxyl group.
Assertion(A): Hydroxyketones are not directly used in grrignard reaction.
Reason(R): Grignard reagent reacts with hydroxyl group.
- a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.
- b)Both Assertion and Reason are true and Reason is not the correct explanation of assertion
- c)Assertion is true but Reason is false.
- d)Assertion is false but Reason is true.
Correct answer is option 'A'. Can you explain this answer?
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In the following question, a Statement of Assertion (A) is given follo...
Assertion and Reason Type Questions in NEET:
Assertion(A): Hydroxyketones are not directly used in Grignard reaction.
Reason(R): Grignard reagent reacts with hydroxyl group.
Explanation:
- The Assertion states that hydroxyketones are not directly used in Grignard reaction. In simpler terms, it means that Grignard reagents do not react with hydroxyketones.
- The Reason given for this Assertion is that Grignard reagents react with hydroxyl groups. This means that Grignard reagents do not react with the carbonyl group of hydroxyketones, which is why they are not directly used in Grignard reactions.
- Now, let us understand Grignard reaction in detail. Grignard reagents are formed by the reaction of an alkyl or aryl halide with magnesium metal in the presence of anhydrous ether. The resulting compound is a very strong base and a strong nucleophile.
- Grignard reagents are used to form carbon-carbon bonds and carbon-oxygen bonds. They react with carbonyl compounds like aldehydes, ketones, and esters to form alcohols.
- However, hydroxyketones have both a hydroxyl group and a carbonyl group. The hydroxyl group is more reactive than the carbonyl group, and therefore, it reacts with Grignard reagents instead of the carbonyl group.
- This leads to the formation of an intermediate compound, which is unstable and rapidly decomposes. This makes it difficult to use hydroxyketones directly in Grignard reactions.
- Hence, the Reason given for the Assertion is correct. Grignard reagents do react with hydroxyl groups, which is why hydroxyketones are not directly used in Grignard reactions.
Conclusion:
- Both the Assertion and the Reason are true, and the Reason is the correct explanation of the Assertion.
- Therefore, the correct answer is option (A).
- NEET aspirants should note that Assertion and Reason type questions are common in the NEET exam, and they should be prepared to answer them correctly.
Assertion(A): Hydroxyketones are not directly used in Grignard reaction.
Reason(R): Grignard reagent reacts with hydroxyl group.
Explanation:
- The Assertion states that hydroxyketones are not directly used in Grignard reaction. In simpler terms, it means that Grignard reagents do not react with hydroxyketones.
- The Reason given for this Assertion is that Grignard reagents react with hydroxyl groups. This means that Grignard reagents do not react with the carbonyl group of hydroxyketones, which is why they are not directly used in Grignard reactions.
- Now, let us understand Grignard reaction in detail. Grignard reagents are formed by the reaction of an alkyl or aryl halide with magnesium metal in the presence of anhydrous ether. The resulting compound is a very strong base and a strong nucleophile.
- Grignard reagents are used to form carbon-carbon bonds and carbon-oxygen bonds. They react with carbonyl compounds like aldehydes, ketones, and esters to form alcohols.
- However, hydroxyketones have both a hydroxyl group and a carbonyl group. The hydroxyl group is more reactive than the carbonyl group, and therefore, it reacts with Grignard reagents instead of the carbonyl group.
- This leads to the formation of an intermediate compound, which is unstable and rapidly decomposes. This makes it difficult to use hydroxyketones directly in Grignard reactions.
- Hence, the Reason given for the Assertion is correct. Grignard reagents do react with hydroxyl groups, which is why hydroxyketones are not directly used in Grignard reactions.
Conclusion:
- Both the Assertion and the Reason are true, and the Reason is the correct explanation of the Assertion.
- Therefore, the correct answer is option (A).
- NEET aspirants should note that Assertion and Reason type questions are common in the NEET exam, and they should be prepared to answer them correctly.
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In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): Hydroxyketones are not directly used in grrignard reaction.Reason(R): Grignard reagent reacts with hydroxyl group.a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of assertionc)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'A'. Can you explain this answer?
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In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): Hydroxyketones are not directly used in grrignard reaction.Reason(R): Grignard reagent reacts with hydroxyl group.a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of assertionc)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): Hydroxyketones are not directly used in grrignard reaction.Reason(R): Grignard reagent reacts with hydroxyl group.a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of assertionc)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): Hydroxyketones are not directly used in grrignard reaction.Reason(R): Grignard reagent reacts with hydroxyl group.a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of assertionc)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'A'. Can you explain this answer?.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): Hydroxyketones are not directly used in grrignard reaction.Reason(R): Grignard reagent reacts with hydroxyl group.a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of assertionc)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): Hydroxyketones are not directly used in grrignard reaction.Reason(R): Grignard reagent reacts with hydroxyl group.a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of assertionc)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): Hydroxyketones are not directly used in grrignard reaction.Reason(R): Grignard reagent reacts with hydroxyl group.a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of assertionc)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'A'. Can you explain this answer?.
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