The relative reactivities of acyl compounds towards nudeophilic substitution are in the order of

1.  Acyl chloride > Acid anhydride > Ester > Amide

2.  Ester > Acyl chloride > Amide >Acid anhydride

3.  Acid anhydride > Amide > Ester > Acyl chloride

4.  Acyl chloride > Ester > Acid anhydride > Amide

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 74%
AIPMT - 2008

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Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which has the structure

1.  

2.  

3.  

4.  

Subtopic:  Name Reaction |
 71%
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AIPMT - 2008

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What is the structure of the dibromo product obtained when propanoic acid reacts with Br2 in the presence of phosphorus (Br2/P)?
1. 2.
3. 4.
Subtopic:  Name Reaction |
 79%
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AIPMT - 2009

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A reaction among the following tht donot result in the formation of carbon-carbon bonds is -

1. Reimer-tiemann reaction

2. Cannizzaro reaction

3. Wurtz reaction

4. Friedel-Crafts acylation

Subtopic:  Mechanism |
 71%
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AIPMT - 2010

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Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is

1. CH3COOCH3

2. CH3CONH2

3. CH3COOCOCH3

4. CH3COCl

Subtopic:  Isomers & Reaction Mechanism |
 78%
AIPMT - 2010

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Which one is a nucleophilic substitution reaction among the following?

1.  RCHO+R'MgXR-CH|OH-R'

2.  CH3-CH2-CH|CH3-CH2Br+NH3CH3-CH2-CH|CH3-CH2NH2

3.  CH3CHO+HCNCH3CHOHCN

4.  CH3-CH=CH2+H2OH+CH3-CH|OH-CH3

Subtopic:  Isomers & Reaction Mechanism |
 65%
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AIPMT - 2011

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In a set of reactions, m-bromobenzoic acid gave a product D. The product D is:

1. 2.
3. 4.
Subtopic:  Isomers & Reaction Mechanism |
 78%
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Clemmensen reduction of a ketone is carried out in the presence of which of the following?

1.  Zn-Hg with HCl

2.  LiAlH4

3.  H2 and Pt as catalyst

4.  Glycol with KOH

Subtopic:  Name Reaction |
 91%
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AIPMT - 2011

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CH3CHO and C6H5CH2CHO can be distinguished chemically by-

1. Benedict test

2. Iodoform test

3. Tollen's reagent test

4. Fehling solution test

Subtopic:  Name Reaction |
 72%
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AIPMT - 2012

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The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D)

1. B > A > D > C

2. B > D > C > A

3. A > B > C > D

4. A > C > B >D

Subtopic:  Carboxylic Acids: Preparation & Properties |
 84%
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AIPMT - 2012

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