Lesson 4.7.2.1
4.7.2.1 Structure and formulae of alkenes Quiz: AQA Chemistry, Unit 7
20 questions
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Lesson 4.7.2.1, Structure and formulae of alkenes: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 7: Organic chemistry, written with Revision Ninja.
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The 20 questions
-
What is the general formula of the alkene homologous series?
- CnHn
- CnH2n
- CnH2n+2
- CnH2n-2
-
What structural feature defines an alkene?
- A carbon-carbon double bond
- A carbon-carbon triple bond
- An -OH group
- A carbon-oxygen single bond
-
What is the molecular formula of the alkene containing six carbon atoms?
- C6H10
- C6H12
- C5H10
- C6H14
-
What is the name of the alkene with 2 carbon atoms?
- Propene
- Ethene
- Ethyne
- Ethane
-
Which of these is one of the first four alkenes?
- Methanol
- Butene
- Ethanoic acid
- Butane
-
Which alkene has 3 carbon atoms?
- Propane
- Butene
- Propene
- Ethene
-
Which formula is that of propene?
- C3H8
- C4H8
- C3H4
- C3H6
-
Which formula belongs to the alkene with 5 carbon atoms?
- C5H10
- C5H14
- C5H12
- C5H8
-
How many hydrogen atoms does butene (C4H8) have compared with butane?
- The same number
- Two fewer
- Four fewer
- Two more
-
Which of these molecules is an alkene?
- C6H12
- C6H6
- C6H14
- C6H16
-
Which molecular formula represents an alkene?
- C4H10
- C6H14
- C5H10
- C5H12
-
A molecule drawn as C2H4 is which alkene?
- Propene
- Ethene
- Ethane
- Ethanol
-
Which name would be wrong for an alkene?
- Butene
- Propane
- Pentene
- Propene
-
Which molecule is unsaturated?
- C3H6
- CH4
- C3H8
- C2H6
-
How does the molecular formula of ethene differ from that of ethane?
- Two extra carbons
- Two fewer carbons
- Two extra hydrogens
- Two fewer hydrogens
-
Which alkane has the same number of carbon atoms as butene?
- Pentane
- Ethane
- Propane
- Butane
-
What feature makes alkenes more reactive than alkanes?
- Ionic bonds
- Shorter carbon chains
- Extra hydrogen atoms
- Carbon-carbon double bond
-
An alkene has formula CnH2n. For n = 7, what is its formula?
- C7H14
- C7H10
- C7H12
- C7H16
-
Which pair is an alkane and an alkene with the same carbon number?
- C6H14 and C6H16
- C6H12 and C6H10
- C6H10 and C6H8
- C6H14 and C6H12
-
What is the defining chemical feature of all alkenes?
- A carboxyl group
- A hydroxyl group
- Double carbon-carbon bond
- Single carbon bonds
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