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.
Subtopic:  Aldehydes & Ketones: Preparation & Properties | Name Reaction |
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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.
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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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.
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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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.
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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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 |
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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. 
Subtopic:  Aldehydes & Ketones: Preparation & Properties | Acid Derivatives - Preparation, Properties & Uses |
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