Acetylene and HCHO reaction to the presence of copper acetylide catalyst to form

1. 2-Butyne-1,4-diol

2. But-2-yne-1,2-diol

3. But-1-yne-1,4-diol

4. None of these

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 52%
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Hydrocarbons questions are over , now starting Aldehydes, Ketones and Carboxylic Acids questions

Which of the following compounds with molecular formula, C5H10 yields acetone on ozonolysis? 

1. 2-methyl-2-butene

2. 3-methyl-1-butene

3. Cyclopentane

4. 2-methyl-1-butene

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 77%
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AIPMT - 2007
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Among acetic acid, phenol and n-hexanol which one of the following compound will react with NaHCO3 solution to give sodium salt and CO2?                                             

1. Acetic acid

2. n-hexanol

3. Acetic acid and phenol

4. Phenol

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 64%
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The reagent used for the separation of acetaldehyde from acetophenone is-

1.  NaHSO3         

2.  C6H5NHNH2           

3.  NH2OH             

4.  NaOH and I2

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Iodoform test is not given by

1. 2-pentanone                 

2. ethanol

3. ethanal                         

4. 3-pentanone

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 60%
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Two isomeric ketones 3-Pentanones and 2-pentanone can be distinguished by

1. I2/NaOH only               

2. NaHSO3 only

3. NaCN/HCl                     

4. both of (a) and (b)   

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Products of the following reaction                                   

  CH3CC-CH2CH3 (ii) hydrolysis(i) O3 ... are

1. CH3CHO + CH3CH2CHO

2. CH3COOH + CH3COCH3

3. CH3COOH + HOOC-CH2CH3

4. CH3COOH + CO2

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 53%
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Which alkene on ozonolysis gives CH3CH2CHO and CH3COCH3?                                          

1. CH3CH2CH=C<CH3CH3

2. CH3CH2CH=CHCH2CH3

3. CH3CH2CH=CHCH3

4. CH3-C|=CHCH3
           CH3

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 81%
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Which one of the following on oxidation gives a ketone?                       

1. primary alcohol                     

2. secondary alcohol

3. tertiary alcohol                     

4. All of these

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of α-hydroxy acid. The carbonyl compound is

1. acetaldehyde 

2. acetone

3. diethyl ketone 

4. formaldehyde                              

Subtopic:  Aldehydes & Ketones: Preparation & Properties | Isomers & Reaction Mechanism |
 65%
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