Which is the major product of the following reaction ?

H2Sproduct

1.         

3.      

4.      

5. 

 

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 52%
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Compound having molecular formula C3H6O may be:

(a) cyclic ether

(b) carbonyl compound

(c) unsaturatd ether or unsaturatd alcohol

(d) all of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 84%
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Which of the following would undergo aldol condensation?

(a) CCl3CHO               (b) 

(c) CH3CH2CHO          (d) HCHO

Subtopic:  Name Reaction |
 92%
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What is the name of a reagent that reacts with both acetaldehyde and ketone?

1. Ammoniacal AgNO3

2. Rochelle salt

3. 2,4-Dinitrophenylhydrazine

4. All of the above

Subtopic:  Isomers & Reaction Mechanism |
 65%
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What is the structural difference between an aldehyde and a ketone?

1. α-H-atom

2.  H-atom combined with carbonyl group 

3. OH and carbonyl group

4. None of the above

Subtopic:  Isomers & Reaction Mechanism |
 69%
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Ketones are less reactive than aldehydes because:

(a) C=O group is less polar in ketones

(b) of electromeric effect

(c) of steric hindrance to the attacking reagent 

(d) none of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 81%
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The important step in Cannizzaro's reaction is the intermolecular shift of:

(a) proton

(b) H-atom

(c) hydride ion

(d) hydronium ion

Subtopic:  Name Reaction |
 66%
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Pinacole is:

(a) 2,3-dimethyl-2,3-butandiol

(b) 3,3-dimethyl-2-propanone

(c) 3-methyl butan-2-ol

(d) none of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 73%
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Benedict's solution provides:

(a) Ag+

(b) Cu2+

(c) Ba2+

(d) Li+

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 76%
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Acetaldehyde undergoes self condensation in presence of aluminium ethoxide to give ethyl acetate. This reaction is called:

(a) Perkin reaction

(b) Tischenko's reaction

(c) Cannizzaro's reaction

(d) Aldol condensation

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 52%
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