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Which of the following reactions is used for detecting presence of carbonyl group ?
- a)Reaction with hydroxylamine
- b)Reaction with hydrazine
- c)Reaction with phenyl hydrazine
- d)All
Correct answer is option 'D'. Can you explain this answer?
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Which of the following reactions is used for detecting presence of car...
Reactions for detecting presence of carbonyl group:
Carbonyl group is a functional group consisting of a carbon atom double bonded to an oxygen atom. It is present in various organic compounds such as aldehydes, ketones, carboxylic acids, etc. The presence of carbonyl group can be detected by various chemical reactions. Some of these reactions are:
1. Reaction with Hydroxylamine:
Hydroxylamine reacts with carbonyl compounds such as aldehydes and ketones to form oximes. The reaction takes place in the presence of an acid catalyst such as HCl or H2SO4. The oximes produced are usually crystalline solids and can be easily identified by their melting points.
2. Reaction with Hydrazine:
Hydrazine reacts with carbonyl compounds such as aldehydes and ketones to form hydrazones. The reaction takes place in the presence of an acid catalyst such as HCl or H2SO4. The hydrazones produced are usually crystalline solids and can be easily identified by their melting points.
3. Reaction with Phenylhydrazine:
Phenylhydrazine reacts with carbonyl compounds such as aldehydes and ketones to form phenylhydrazones. The reaction takes place in the presence of an acid catalyst such as HCl or H2SO4. The phenylhydrazones produced are usually yellow or orange crystalline solids and can be easily identified by their melting points.
4. All of the above:
All of the above reactions can be used for detecting the presence of carbonyl group in organic compounds. Each of these reactions has its own advantages and limitations. The choice of reaction depends on the type of carbonyl compound being tested and the desired outcome.
Carbonyl group is a functional group consisting of a carbon atom double bonded to an oxygen atom. It is present in various organic compounds such as aldehydes, ketones, carboxylic acids, etc. The presence of carbonyl group can be detected by various chemical reactions. Some of these reactions are:
1. Reaction with Hydroxylamine:
Hydroxylamine reacts with carbonyl compounds such as aldehydes and ketones to form oximes. The reaction takes place in the presence of an acid catalyst such as HCl or H2SO4. The oximes produced are usually crystalline solids and can be easily identified by their melting points.
2. Reaction with Hydrazine:
Hydrazine reacts with carbonyl compounds such as aldehydes and ketones to form hydrazones. The reaction takes place in the presence of an acid catalyst such as HCl or H2SO4. The hydrazones produced are usually crystalline solids and can be easily identified by their melting points.
3. Reaction with Phenylhydrazine:
Phenylhydrazine reacts with carbonyl compounds such as aldehydes and ketones to form phenylhydrazones. The reaction takes place in the presence of an acid catalyst such as HCl or H2SO4. The phenylhydrazones produced are usually yellow or orange crystalline solids and can be easily identified by their melting points.
4. All of the above:
All of the above reactions can be used for detecting the presence of carbonyl group in organic compounds. Each of these reactions has its own advantages and limitations. The choice of reaction depends on the type of carbonyl compound being tested and the desired outcome.
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Community Answer
Which of the following reactions is used for detecting presence of car...
All three react with ketone and aldehyde thatswhy used for detecting the presence of carbonyl group.
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Which of the following reactions is used for detecting presence of carbonyl group ?a)Reaction with hydroxylamineb)Reaction with hydrazinec)Reaction with phenyl hydrazined)AllCorrect answer is option 'D'. Can you explain this answer?
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