General Methods of Preparation, Properties, and Reactions NEET Questions

Organic Chemistry - Hydrocarbons

General Methods of Preparation, Properties, and Reactions MCQ Questions


7.
In the preparation of ethers by Williamson synthesis, the preferred halide is:
A.
Secondary alkyl halide
B.
Primary alkyl halide
C.
Tertiary alkyl halide
D.
Aryl halide
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ANSWER :
B. Primary alkyl halide
8.
What happens when an aldehyde undergoes oxidation?
A.
It forms a ketone
B.
It forms a carboxylic acid
C.
It forms an alcohol
D.
It forms an ester
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ANSWER :
B. It forms a carboxylic acid
9.

Ethanoic acid reacts with ethanol in presence of conc. H2SO4 to give:

A.

Ethanamide

B.

Ethyl ethanoate

C.

Ethanol

D.

Ethane

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ANSWER :

B. Ethyl ethanoate

10.
Which of the following is not used in the preparation of alkanes?

NEET - 2017

A.
Wurtz reaction
B.
Decarboxylation of acids
C.
Wurtz–Fittig reaction
D.
Corey–House synthesis
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ANSWER :
C. Wurtz–Fittig reaction
11.
Which of the following undergoes nucleophilic substitution most easily?
A.
Benzyl chloride
B.
Vinyl chloride
C.
Chlorobenzene
D.
Methyl chloride
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ANSWER :
A. Benzyl chloride
12.
Which of the following is an example of an electrophilic aromatic substitution?
A.
Friedel-Crafts alkylation
B.
Friedel-Crafts acylation
C.
Nitration
D.
All of the above
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ANSWER :
D. All of the above