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Hydrocarbons MCQ Questions And Answers - Chemistry Class 11

Hydrocarbons MCQs : This section focuses on the "Hydrocarbons" in Chemistry Class 11. These Multiple Choice Questions (MCQs) should be practiced to improve the Chemistry Class 11 skills required for various exams, interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Hydrocarbons are organic compounds that are entirely made up of only _______ kinds of atoms.

A. 1
B. 2
C. 3
D. 4

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Question 2

hydrocarbons are colourless gases

C. Can be true or false
D. Can not say

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Question 3

The molecular formula for these compounds is?

A. CxHyOz
B. Cx
C. Hy
D. CxHy

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Question 4

Older chemists classified hydrocarbons as either?

A. aliphatic
B. aromatic
C. Both A and B
D. None of the above

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Question 5

Which hydrocarbons possess one or multiple carbon rings?

A. Aromatic Hydrocarbons
B. Cycloalkanes
C. Aliphatic Hydrocarbons
D. Unsaturated Hydrocarbons

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Question 6

Aromatic Hydrocarbons are also called as arenes.

C. Can be true or false
D. Can not say

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Question 7

Choose the process by which liquid hydrocarbons can be converted to gaseous hydrocarbons

A. hydrolysis
B. oxidation
C. distillation under reduced pressure
D. cracking

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Question 8

Which one of the following halide can be used in the Friedel-Crafts reaction?

A. Bromobenzene
B. Isopropyl chloride
C. Chlorobenzene
D. Chloroethene

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Question 9

Isopropyl iodide is formed after reaction of propene with HI, this is due to

A. more stable free radical
B. homolysis
C. more stable carbanion
D. more stable carbocation

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Question 10

The alkanes can be produced from alkenes or alkynes through hydrogenation

A. Yes
B. No
C. Can be yes or no
D. Can not say

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