Question 1

What is the systematic name of the compound below?

  A  

E-2-bromobut-2-ene

  B  

Z-2-bromobut-2-ene

  C  

E-1,2-dimethyl-1-bromoethene

  D  

Z-1,2-dimethyl-1-bromoethene

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Question 2

The structure of a stereoisomer is shown below.

Which term correctly describes this stereoisomer?

  A  

cis-

  B  

trans-

  C  

E-

  D  

Z-

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Question 3

Which has E-Z isomers?

  A  

C2H2Br2

  B  

C2H3Br

  C  

C2H4Br2

  D  

C2H5Br

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Question 4

What is the systematic name for the chlorofluorocarbon compound shown?

  A  

E-1,2-dichloro-2-fluoroethene

  B  

Z-1,2-dichloro-2-fluoroethene

  C  

E-1,2-dichloro-1-fluoroethene

  D  

Z-1,2-dichloro-1-fluoroethene

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Question 5

Which intermediate ion forms in the greatest amount during the addition of HBr to propene?

  A  

CH3CH+CH3

  B  

CH3CH2CH2+

  C  

CH3CH-CH2Br

  D  

CH3CHBrCH2-

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Question 6

Polymerisation of ethene gives poly(ethene).

How does the bonding between carbon atoms in poly(ethene) compare with that in ethene?

  A  

longer and stronger in poly(ethene)

  B  

longer and weaker in poly(ethene)

  C  

shorter and stronger in poly(ethene)

  D  

shorter and weaker in poly(ethene)

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Question 7

A section showing two repeat units of an addition polymer is shown. 

What is the identity of the monomer that produced this polymer?

  A  

2-chloro-3-methylbutane

  B  

2-chloro-3-methylbut-2-ene

  C  

2-chloropent-2-ene

  D  

2,4-dichloro-3,3,4,5-tetramethylhexane

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Question 8

Which statement about poly(chloroethene) is correct?

  A  

the polymer can be cracked to produce chlorinated alkenes

  B  

the polymer has harmless combustion products

  C  

the polymer is readily biodegradable when buried

  D  

the repeat unit of the polymer has an Mr of 97

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Question 9

In the reaction between ethene and bromine, the bromine molecule acts as an electrophile.

CH2=CH2 + Br2 ➔ BrCH2CH2Br

Which of the following statements is true?

  A  

ethene acts as a nucleophile because it is polar

  B  

ethene acts as a nucleophile because it can donate a pair of electrons to bromine

  C  

ethene is not a nucleophile in this reaction

  D  

ethene acts as a nucleophile because it donates a single electron to bromine

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Question 10

The mechanism of the reaction between ethene and hydrogen bromide is

  A  

electrophilic addition

  B  

electrophilic substitution

  C  

nucleophilic addition

  D  

nucleophilic substitution

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Question 11

Which substance will not give 3-methylpentane when reduced with hydrogen?

  A  

2-ethylbut-1-ene

  B  

3-methylpent-2-ene

  C  

2-methylpent-1-ene

  D  

3-methylpent-1-ene

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Question 12

Which compound has non-polar molecules?

  A  

E-1,2-dichlorobut-2-ene

  B  

E-2,3-dichlorobut-2-ene

  C  

Z-2,3-dichlorobut-2-ene

  D  

Z-1,4-dichlorobut-2-ene

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Question 13

What is the best description for the bonding between the carbon atoms in an ethene molecule?

  A  

one σ-bond and one π-bond

  B  

one π-bond

  C  

two σ-bonds

  D  

two π-bonds

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Question 14

A student reacts pent-2-ene with bromine in the laboratory.

Which compound is formed?

  A  

1,1-dibromopentane

  B  

1,2-dibromopentane

  C  

2,2-dibromopentane

  D  

2,3-dibromopentane

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Question 15

This structure shows a section of a polymer chain formed from the random polymerisation of two different monomers.

Which pair of monomers could produce this polymer?

  A  

CH2=CHF and CH2=CHCF3

  B  

CH2=CH2 and CHF=CHCF3

  C  

CH2=CH2 and CH2=CHCF3

  D  

CH2=CHF and CHCF3=CHF

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Question 16

What is the IUPAC name of the major product of the reaction between 2-ethylbut-1-ene and hydrogen bromide?

  A  

1-bromo-2-ethylbutane

  B  

2-bromo-2-ethylbutane

  C  

2-bromo-2-methylpentane


  D  

3-bromo-3-methylpentane


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