The Clemmensen reduction of a ketone is carried out in the presence of:

1. Zn-Hg with HCl

2. LiAlH4

3. H2 and Pt as a catalyst

4. Glycol with KOH

Subtopic:  Name Reaction |
 92%
From NCERT
AIPMT - 2011
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The product 'D' in the below-mentioned reaction will be:

 

1.  2.
3. 4.
 

Subtopic:  Isomers & Reaction Mechanism |
 65%
From NCERT
AIPMT - 2011
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The example of a nucleophilic substitution reaction among the following is:

1.
2.
3.
4.
Subtopic:  Isomers & Reaction Mechanism |
 65%
From NCERT
AIPMT - 2011
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The compound that is most susceptible to a nucleophilic attack in the carbonyl group is:

1. CH3COOCH3

2. CH3CONH2

3. CH3COOCOCH3

4. CH3COCl

Subtopic:  Isomers & Reaction Mechanism |
 67%
AIPMT - 2010
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In a basic medium, acetophenone yields a stable compound A with C2H5ONa.

The structure of A is:

1.  2.
3. 4.
Subtopic:  Name Reaction |
 65%
From NCERT
AIPMT - 2008
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A strong base can abstract an α-hydrogen from:

1. Alkene
2. Amine
3. Ketone
4. Alkane
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 70%
From NCERT
AIPMT - 2008
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Reduction of aldehydes and ketones into hydrocarbons using amalgam and conc. HCl is called:

1. Clemmensen reduction

2. Cope reduction

3. Dow reduction

4. Wolff-Kishner reduction

Subtopic:  Aldehydes & Ketones: Preparation & Properties | Name Reaction |
 87%
From NCERT
AIPMT - 2007
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A compound with the molecular formula C5H10 that yields acetone on ozonolysis is:
1. 2-Methyl-2-butene
2. 2-Methyl-1-butene
3. Cyclopentane
4. 3-Methyl-1-butene

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 81%
From NCERT
AIPMT - 2007
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A carbonyl compound reacts with hydrogen cyanide to form cyanohydrins, which form a racemic mixture of α-hydroxy acid on hydrolysis. The carbonyl compound is:

1. Acetaldehyde

2. Acetone

3. Diethyl ketone

4. Formaldehyde

Subtopic:  Aldehydes & Ketones: Preparation & Properties | Isomers & Reaction Mechanism |
 63%
From NCERT
AIPMT - 2006
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The nucleophilic addition reaction will be most favored among the given compounds is:

1. CH3CH2CH2COCH3

2. (CH3)2C=O

3. CH3CH2CHO

4. CH3CHO

Subtopic:  Isomers & Reaction Mechanism |
 70%
From NCERT
AIPMT - 2006
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