Which one of the following can be oxidised to the corresponding carbonyl compound?          

1. 2-hydroxy propane

2. Ortho-nitro phenol

3. Phenol

4. 2-methyl-2-hydroxy propane

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Consider the following reaction,

PhenolZn-dustXAnhy.AlCl3CH3ClYAlk.KMnO4

The product Z is                            

1. toluene

2. benzaldehyde

3. benzoic acid

4. benzene

Subtopic:  Isomers & Reaction Mechanism |
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Reduction of aldehydes and ketones into hydrocarbons using zinc amalgam and conc. HCl is called    

1. Clemmenson reduction

2. Cope reduction

3. Dow reduction

4. Wolff-Kishner reduction

Subtopic:  Aldehydes & Ketones: Preparation & Properties | Name Reaction |
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The -OH group of an alcohol or the -COOH group of a carboxylic acid can be replaced by -Cl using     

1. phosphorus pentachloride

2. hypochlorous acid

3. chlorine

4. hydrochloric acid

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Acetone reacts with iodine (I2) to form iodoform in the presence of      

1. CaCO3   

2. NaOH     

3. KOH     

4. MgCO3

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 86%
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A and B in the following reactions are  

1. A=RR'CH2CN,              B=NaOH

2. A=RR'C<COOHOH ,          B=CH3

3. A=RR'C<COOHCN ,          B=CH3

4. A=RR"C<OHCN,              B=LiAlH4

Subtopic:  Aldehydes & Ketones: Preparation & Properties | Isomers & Reaction Mechanism |
 89%
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Benzaldehyde and acetaldehyde can be distinguished by:

1. Iodoform test

2. 2,4 - DNP test

3. NH3 reaction

4. Wolff-Kishner's reduction

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Acetaldehyde normally reacts with                

1. only electrophiles

2. only nucleophiles

3. only free radicals

4. both electrophiles and nucleophiles

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Nucleophilic addition reaction will be most favoured in                   [2006]

1. 
                        O
                        
CH3-CH2-CH2C-CH3

2. (CH3)2C=O

3. CH3CH2CHO

4. CH3CHO

Subtopic:  Isomers & Reaction Mechanism |
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The enolic form of acetone contains:

1. 9 σ-bonds, 1π-bond and 2 lone pairs

2. 8 σ-bonds, 2π-bonds and 2 lone pairs

3. 10 σ-bonds, 1π-bond and 1 lone pair

4. 9 σ-bonds, 2π-bonds and 1 lone pair

 

 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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