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

(1) MeCOCl

(2) MeCHO

(3) MeCOOMe

(4) MeCOOCOMe

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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In a Cannizzaro's reaction, the intermediate that will be best hydride donor is:

1. 

2. 

3. 

4. 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 55%
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In the Cannizzaro's reaction given below,

2Ph-CHOOH-Ph-CH2OH + PhCOO-

the slowest step is:

(1) The attack of OH- at the carbonyl group

(2) the transfer of hydride to the carbonyl group

(3) the abstraction of proton from the carboxylic acid

(4) the deprotonation of Ph-CH2OH

Subtopic:  Name Reaction |
 75%
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The aldol condensation of acetaldehyde results in hte formation of:

1. CH3 C CHCH3        ||  |        O OH

2. CH3 CHCH2 CH              |         ||           OH        O

3. CH3CH2CHCH           |               ||         OH             O

4. CH2CH2OH+COOH

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 72%
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Wolff-Kishner's reaction is:

1. reduction of carbonyl compound into hydrocarbons

2. reduction of carbonyl compound into alcohols

3. reduction of nitrobenzene into aniline

4. reduction of carbohydrates to alcohol

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 85%
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The correct order of reactivity of PhMgBr with,

 

         O                    O                    O
         ||                    ||                    ||
PHCPH CH3CH   CH3CCH3 is:
         (l)           (ll)                     (lll)

(1) I>II>III

(2) III>II>I

(3) II>III>I

(4) II>I>III

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 66%
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The IUPAC name of the CH3COCH(CH3)2 is:

(1) 4-methyl isopropyl ketone

(2) 3-methyl-2-butanone

(3) isopropylmethyl ketone

(4) 2-methyl-3-butanone

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 81%
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In the folllowing sequence products I, J and L are formed and K represents a regent.

 

(i) The structure of the product I is:

(ii) The structures of compounds J & K respectively are:

(iii) The structure of product L is:

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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A tertiary alcohol H upon acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J & K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M.

(i) Compound H is formed by the reaction of: 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Vanillin, used as a flavouring agent, is:
1. An Aliphatic alcohol
2. An Aromatic aldehyde
3. A Hydrocarbon
4. A Carbohydrate

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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