M4S1 – Alkanes


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Alkanes

1 / 10

Passing the vapour of a liquid mixture of alkanes over strongly heated porcelain chips produces a product which:

(i) is a gas

(ii) is highly flammable

(iii) decolourises a solution of bromine

(iv) is soluble in water.

2 / 10

The members of the homologous series of alkanes:

(i) are all straight-chain compounds

(ii) have the general formula CnH(2n + 2)

(iii) have identical chemical properties

(iv) show a regular gradation of physical properties as the number of carbon atoms increases.

3 / 10

Which of these formulae represents 2,2-dimethylpentane?

(i) CH3C(CH3)2CH2CH2CH3

(ii) CH3CH2C(CH3)2CH2CH3

(iii) CH3CH2CH2C(CH3)2CH3

(iv) CH3CH2CH2CH2CH(CH3)2

4 / 10

At a high temperature in the presence of steam, the alkane C16H24 reacts to form a mixture of ethene, propene and ethane. This is an example of:

5 / 10

How many monosubstitution products can be formed when butane reacts with chlorine?

6 / 10

One mole of an alkane needs 8 moles of oxygen for complete combustion. What is the molecular formula of the alkane?

7 / 10

Burning a hydrocarbon fuel such as methane gas in a limited supply of air is dangerous because under these conditions one of the products is:

8 / 10

An alkane in petrol is:

9 / 10

What is the name for this structure:

CH3CH(CH3)CH(CH3)CH2CH3?

10 / 10

Which of these hydrocarbons is an alkane?

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