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Which of the following reagents can be used for the separation of a mixture containing CH3CHO and CH3CN?
- a)NaHSO3
- b)Schiff`s reagent
- c)NaOH/I2
- d)2, 4-dinitrophenyl hydrazine
Correct answer is option 'A,D'. Can you explain this answer?
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Which of the following reagents can be used for the separation of a mi...
Both NaHSO3 and 2,4-dinitrophenyl hydrazine form precipitate with aldehydes and ketones, from which carbonyls can be recovered back easily.
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Which of the following reagents can be used for the separation of a mi...
Reagents for Separation of CH3CHO and CH3CN Mixture
Separating a mixture containing CH3CHO (acetaldehyde) and CH3CN (acetonitrile) requires specific reagents that can selectively react with each compound. Two reagents that can be used for this purpose are NaHSO3 and 2,4-dinitrophenyl hydrazine.
NaHSO3 (Sodium Bisulfite)
- NaHSO3 can react with aldehydes like CH3CHO to form addition products, which can be easily separated.
- This reagent selectively reacts with aldehydes over nitriles, making it suitable for separating CH3CHO from CH3CN.
- The addition product of NaHSO3 with CH3CHO is water-soluble, allowing for easy separation of the two compounds.
2,4-Dinitrophenyl Hydrazine
- 2,4-Dinitrophenyl hydrazine is commonly used for the qualitative identification of aldehydes and ketones based on the formation of yellow to orange precipitates.
- It selectively reacts with aldehydes like CH3CHO to form a yellow-orange precipitate, making it a useful reagent for separating CH3CHO from CH3CN.
- This reagent helps in the identification and separation of aldehydes in a mixture containing both aldehydes and nitriles.
By utilizing NaHSO3 and 2,4-dinitrophenyl hydrazine as reagents, one can effectively separate a mixture containing CH3CHO and CH3CN based on the specific reactions of these compounds.
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Which of the following reagents can be used for the separation of a mixture containing CH3CHO and CH3CN?a)NaHSO3b)Schiff`s reagentc)NaOH/I2d)2, 4-dinitrophenyl hydrazineCorrect answer is option 'A,D'. Can you explain this answer?
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Which of the following reagents can be used for the separation of a mixture containing CH3CHO and CH3CN?a)NaHSO3b)Schiff`s reagentc)NaOH/I2d)2, 4-dinitrophenyl hydrazineCorrect answer is option 'A,D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following reagents can be used for the separation of a mixture containing CH3CHO and CH3CN?a)NaHSO3b)Schiff`s reagentc)NaOH/I2d)2, 4-dinitrophenyl hydrazineCorrect answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following reagents can be used for the separation of a mixture containing CH3CHO and CH3CN?a)NaHSO3b)Schiff`s reagentc)NaOH/I2d)2, 4-dinitrophenyl hydrazineCorrect answer is option 'A,D'. Can you explain this answer?.
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