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Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers are
independently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number of
ketones that give a racemic product(s) is/are
independently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number of
ketones that give a racemic product(s) is/are
Correct answer is '5'. Can you explain this answer?
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Consider all possible isomeric ketones, including stereoisomers of MW ...
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Introduction:
In this question, we are given a set of isomeric ketones with a molecular weight of 100. We need to determine the number of ketones that will produce a racemic product when reacted with NaBH4.
Understanding the concept:
When a ketone is reacted with NaBH4, it undergoes reduction to form an alcohol. The reduction of a ketone by NaBH4 is a stereospecific process, meaning that the configuration of the product is determined by the configuration of the starting ketone.
Determining the number of ketones that give a racemic product:
To determine the number of ketones that give a racemic product, we need to consider the presence of a chiral center in the ketone molecule. A chiral center is a carbon atom bonded to four different groups.
Case 1: Ketones with no chiral centers:
If a ketone has no chiral centers, it will not produce a racemic product. This is because there is no possibility for the product to have different configurations.
Case 2: Ketones with one chiral center:
If a ketone has one chiral center, it can exist as a pair of enantiomers. When reacted with NaBH4, each enantiomer will produce the corresponding enantiomeric alcohol. Therefore, in this case, the ketone will give a racemic product.
Case 3: Ketones with two chiral centers:
If a ketone has two chiral centers, it can exist as a pair of diastereomers. When reacted with NaBH4, each diastereomer will produce a mixture of enantiomeric alcohols. Therefore, in this case, the ketone will give a racemic product.
Case 4: Ketones with more than two chiral centers:
If a ketone has more than two chiral centers, it can exist as a pair of diastereomers. However, in this case, the diastereomers will not be mirror images of each other, and the reaction with NaBH4 will not produce a racemic product.
Conclusion:
In summary, the ketones that give a racemic product when reacted with NaBH4 are those with one or two chiral centers. Therefore, out of all the possible isomeric ketones with a molecular weight of 100, there are 5 ketones that will produce a racemic product.
In this question, we are given a set of isomeric ketones with a molecular weight of 100. We need to determine the number of ketones that will produce a racemic product when reacted with NaBH4.
Understanding the concept:
When a ketone is reacted with NaBH4, it undergoes reduction to form an alcohol. The reduction of a ketone by NaBH4 is a stereospecific process, meaning that the configuration of the product is determined by the configuration of the starting ketone.
Determining the number of ketones that give a racemic product:
To determine the number of ketones that give a racemic product, we need to consider the presence of a chiral center in the ketone molecule. A chiral center is a carbon atom bonded to four different groups.
Case 1: Ketones with no chiral centers:
If a ketone has no chiral centers, it will not produce a racemic product. This is because there is no possibility for the product to have different configurations.
Case 2: Ketones with one chiral center:
If a ketone has one chiral center, it can exist as a pair of enantiomers. When reacted with NaBH4, each enantiomer will produce the corresponding enantiomeric alcohol. Therefore, in this case, the ketone will give a racemic product.
Case 3: Ketones with two chiral centers:
If a ketone has two chiral centers, it can exist as a pair of diastereomers. When reacted with NaBH4, each diastereomer will produce a mixture of enantiomeric alcohols. Therefore, in this case, the ketone will give a racemic product.
Case 4: Ketones with more than two chiral centers:
If a ketone has more than two chiral centers, it can exist as a pair of diastereomers. However, in this case, the diastereomers will not be mirror images of each other, and the reaction with NaBH4 will not produce a racemic product.
Conclusion:
In summary, the ketones that give a racemic product when reacted with NaBH4 are those with one or two chiral centers. Therefore, out of all the possible isomeric ketones with a molecular weight of 100, there are 5 ketones that will produce a racemic product.
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Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer?
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Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer?.
Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer?.
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Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer?, a detailed solution for Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer? has been provided alongside types of Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers areindependently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number ofketones that give a racemic product(s) is/areCorrect answer is '5'. Can you explain this answer? theory, EduRev gives you an
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