- 1(current)
Q. No.Assertion(A): Lower aldehydes and ketones are soluble in water but the solubility decreases as the molecular masses increase.
Reason(R): Distinction between aldehydes and ketones can be made by Tollen's test.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is a true statement but R is false.
4. Both A and R are false statements.
Reason(R): Distinction between aldehydes and ketones can be made by Tollen's test.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is a true statement but R is false.
4. Both A and R are false statements.
Subtopic: Aldehydes & Ketones: Preparation & Properties | Name Reaction |
89%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Assertion(A): Hydroxyketones are not directly used in Grignard reaction.
Reason(R): Grignard reagents react with hydroxyl group.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is a true statement but R is false.
4. Both A and R are false statements.
Reason(R): Grignard reagents react with hydroxyl group.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is a true statement but R is false.
4. Both A and R are false statements.
Subtopic: Aldehydes & Ketones: Preparation & Properties |
66%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Assertion(A): p-O2N — C6H5COCH3 is prepared by Friedel Crafts acylation of nitrobenzene.
Reason(R): Nitrobenzene easily undergoes an electrophilic substitution reaction.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true statement but R is false.
4. Both A and R are false statements.
Reason(R): Nitrobenzene easily undergoes an electrophilic substitution reaction.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true statement but R is false.
4. Both A and R are false statements.
Subtopic: Aldehydes & Ketones: Preparation & Properties |
52%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh
Assertion(A): In presence of NaBH4, \(~~~~~~~~~~~~~~~~~~~~~~~~~O\\ ~~~~~~~~~~~~~~~~~~~~~~~~~\|\\ CH_2=CH-C-H\) is reduced to give \(CH_3-CH_2-CH_2OH.\)
Reason(R): NaBH4 reduces conjugated double bonds also.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. Both A and R are false statements.
Reason(R): NaBH4 reduces conjugated double bonds also.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. Both A and R are false statements.
Subtopic: Aldehydes & Ketones: Preparation & Properties |
59%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh
| Assertion (A): | Benzaldehyde is less reactive than acetaldehyde towards nucleophiles. |
| Reason (R): | Carbonyl carbon in benzaldehyde has less positive charge than that of carbonyl carbon in acetaldehyde due to resonance. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
77%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Assertion(A): Aldehydes and ketones give nucleophilic addition reaction but acyl derivatives give nucleophilic substitution reaction.
Reason(R): Aldehydes and ketones contain stronger bases and poor leaving groups in comparison to acyl derivatives.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is a true statement but R is false.
4. Both A and R are false statements.
Reason(R): Aldehydes and ketones contain stronger bases and poor leaving groups in comparison to acyl derivatives.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is a true statement but R is false.
4. Both A and R are false statements.
Subtopic: Aldehydes & Ketones: Preparation & Properties | Acid Derivatives - Preparation, Properties & Uses |
80%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
- 1(current)
Q. No.
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