NEW
Font size
WorksheetsNational 5 Chemistry - Hydrocarbons Revision
Total questions: 25
Worksheet time: 15mins
Which of these does not belong to the same homologous series?
pentane
cyclopropane
propane
hexane
Which of these is a use for alkanes?
to make plastics
fuels
solvent
to make alcohols
What is the general formula of an alkane?
CnH2n+1
CnH2n-1
CnH2n
CnH2n+2
What is the general formula of an alkene?
CnH2n+1
CnH2n-1
CnH2n
CnH2n+2
What is the general formula of cycloalkane?
CnH2n+1
CnH2n-1
CnH2n
CnH2n+2
What does this describe 'substances with the same molecular formula but different structural formula'
homologous series
hydrocarbon
isomer
none of these
What does this describe 'a family of compounds with the same general formula and similar chemical properties' ?
homologous series
hydrocarbon
isomer
none of these
What does this describe 'a substance that contains only hydrogen and carbon' ?
homologous series
hydrocarbon
isomer
none of these
What do you call an alkene with 2 carbons?
ethane
ethene
propane
propene
What would an alkane with 8 carbons be called?
octene
heptene
heptane
octane
Which alkane has 8 hydrogens?
octane
propane
pentane
hexane
If an alkene has 20 carbons, how many hydrogens would it have?
20
40
41
42
If an alkene had 20 hydrogens, how many carbons would it have?
8
10
40
42
If an alkane had 20 carbons, how many hydrogens would it have?
10
8
40
42
When bromine is added to an alkene it makes ....
a dihaloalkane
an alcohol
an alkane
a cycloalkane
What type of reaction occurs when hydrogen is added to an alkene?
hydration
halogenation
hydrogenation
none of these
Which of these reactions would make an alcohol?
hydration
hydrogenation
halogenation
none of these
What is the name of this alkane?
2,3-dimethylpropane
3,4-dimethylpropane
2,3-dimethylpentane
3,4-dimethylpentane.
The shortened structural formula for an organic compound is CH3CH(CH3)CH(OH)C(CH3)3
Which of the following is another way of representing this structure?
Three members of the cycloalkene homologous series are shown.
Which of the following is the general formula for this homologous series?
CnH2n—4
CnH2n+2
CnH2n
CnH2n—2
Which of the following compounds belongs to the same homologous series as the compound with the molecular formula C3H8?
The systematic name for the structure shown is
1,2-dimethylpent-1-ene
2,3-dimethylpent-1-ene
3,4-dimethylpent-4-ene
3,4-dimethylpent-1-ene
Two isomers of butene are shown.
Which of the following structures represents a third isomer of butene?
Which of the following could be the molecular formula for an alkane?
C7H16
C7H14
C7H12
C7H10
A student added bromine solution to compound X and compound Y. These are shown in the picture. Which substance(s) would decolourise bromine solution?
Compound X only
Compound Y only
Compound X and Y
Neither compound X nor Y
