C6H5CHO on reacting with Cl2 gives:

(1) C6H5CHCl2

(2) C6H5COOH

(3) C6H5CH2OH

(4) C6H5COCl

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 61%
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Dialkyl cadmium reacts with a compound to form a ketone

The compound is:

1. acid

2. acid chloride

3. ester

4. CO

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 78%
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Ketones are less reactive than aldehydes because:

(1) C=O group is more polar in ketones

(2) of electromeric effect

(3) of steric hindrance to the attacking reagent 

(4) none of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 80%
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The polymer is obtained when HCHO is allowed to stand. It is a white solid. The polymer is:

(1) trioxane

(2) formose

(3) para-formaldehyde

(4) metaldehyde

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 50%
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The important step in Cannizzaro's reaction is the intermolecular shift of:

(1) proton

(2) H-atom

(3) hydride ion

(4) hydronium ion

Subtopic:  Name Reaction |
 67%
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Pinacole is:

1. 2,3-dimethyl-2,3-butandiol

2. 3,3-dimethyl-2-propanone

3. 3-methylbutan-2-ol

4. None of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 72%
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Which reaction is used for detecting the presence of carbonyl group?

1. Reaction with hydrazine

2. Reaction with phenylhydrazine

3. Reaction with hydroxylamine

4. All of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 88%
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Acetone is used in:

1. face creams

2. vanilla

3. nail polishes

4. sweet-smelling erasers

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 71%
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Benedict's solution provides:

(1) Ag+

(2) Cu2+

(3) Ba2+

(4) Li+

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 75%
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Jones reagent is:

1. Acidified KMnO4

2. K2Cr2O7 + H2SO4 or chromic acid + H2SO4

3. Alkaline K2Cr2O7

4. None of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 86%
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