The correct formula of crotonaldehyde is:

1.  CH3CH2CHO

2.  CH2=CH-CH(OH)CHO

3.  CH3-(CH2)3CHO

4.  CH3-CH=CH-CHO

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4
Correct Answer :

CH3-CH=CH-CHO


Explanation :
No Explanation available for this question

Which of the following compounds is formed on ozonolysis followed by hydrolysis of 2 - butene

1.  Acetone and formaldehyde

2.  Acetaldehyde

3.  Butyric acid

4.  Acetone and acetaldehyde

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4
Correct Answer :

Acetaldehyde


Explanation :
No Explanation available for this question

Aldehydes acts as

1.  Dehydrating agents

2.  Reducing agents

3.  Oxidising agents

4.  Dehydrogenating agents

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4
Correct Answer :

Reducing agents


Explanation :
No Explanation available for this question

Benzaldehyde reacts with aniline to give

1.  Benzamide

2.  Benzene diazonium chloride

3.  Benzal aniline

4.  Hydro benzamide

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4
Correct Answer :

Benzal aniline


Explanation :
No Explanation available for this question

In the reactionA and B are

1.  CH3COCH3,CH2=CHCOOH

2.  HCHO,CH2=CHCOOH

3.  HCHO,CH3COOH+CO2

4.  CH3CHO,CH2=CHCOOH

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4
Correct Answer :

HCHO,CH2=CHCOOH


Explanation :
No Explanation available for this question

The Product of acid hydrolysis of P and Q can be designated by

1.  Lucas reagent

2.  2, 4 – DNP

3.  Fehlings's solution

4.  NaHSO3

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4
Correct Answer :

Fehlings's solution


Explanation :
No Explanation available for this question

A nucleophilic reagent will, readily attack

1.  Ethylene glycol

2.  Ethanal

3.  Ethanol

4.  Ethylamine

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4
Correct Answer :

Ethanal


Explanation :
No Explanation available for this question

One mole of an organic compound requires half mole of oxygen to give an acid. The compound may be

1.  Alcohols

2.  Ketone

3.  Aldehyde

4.  Ether

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4
Correct Answer :

Aldehyde


Explanation :
No Explanation available for this question

Paraldehyde is a

1.  Dimer of acetaldehyde

2.  Trimer of acetaldehyde

3.  Hexamer of acetaldehyde

4.  Equimolar mixture of formaldehyde and acetaldehyde

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4
Correct Answer :

Trimer of acetaldehyde


Explanation :
No Explanation available for this question

Formaldehyde reacts with ammonia to give white precipitate of hexamethylene tetramine. It is also called

1.  Urotropine

2.  Formose

3.  Trioxane

4.  Formalin

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4
Correct Answer :

Urotropine


Explanation :
No Explanation available for this question
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