What are hydrocarbons?

Organic compounds containing carbon and hydrogen only

Compounds containing oxygen only

Compounds containing metals and hydrogen

Compounds containing nitrogen only

Which bonds are present in alkanes?

Carbon-carbon and carbon-hydrogen single bonds

Carbon-carbon double bonds only

Carbon-carbon triple bonds only

Class 9 Chemistry · Chapter 11 · Test 9

Comprehensive Hydrocarbons Review

25 MCQs reviewing hydrocarbons alkanes their nomenclature preparation methods chemical reactions physical properties and important applications from Chapter 11.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
What are hydrocarbons?
- AOrganic compounds containing carbon and hydrogen only
- BCompounds containing oxygen only
- CCompounds containing metals and hydrogen
- DCompounds containing nitrogen only
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Answer: A
Hydrocarbons contain carbon and hydrogen only.
Question 2
Which family of hydrocarbons is discussed in detail in Chapter 11?
- AAlkanes
- BAlkenes
- CAlkynes
- DAromatic hydrocarbons
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Answer: A
The chapter classifies hydrocarbons into several types but discusses alkanes.
Question 3
What type of hydrocarbons are alkanes?
- ASaturated hydrocarbons
- BUnsaturated hydrocarbons
- CAromatic hydrocarbons
- DIonic hydrocarbons
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Answer: A
Alkanes are saturated hydrocarbons because they contain only single bonds.
Question 4
Which bonds are present in alkanes?
- ACarbon-carbon and carbon-hydrogen single bonds
- BCarbon-carbon double bonds only
- CCarbon-carbon triple bonds only
- DIonic bonds
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Answer: A
Alkanes contain carbon-carbon and carbon-hydrogen single bonds.
Question 5
What is the general formula of alkanes?
- ACnH2n+2
- BCnH2n
- CCnH2n-2
- DCnHn
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Answer: A
The general formula of alkanes is CnH2n+2.

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