MULTIPLE CHOICE TEST
1. The general formula for alkenes is... CnHn CnH2n-2 CnH2n
2. The empirical formula of cyclohexene
3. Which of the following
straight chain alkenes has the highest
4. What is the name of the
compound with the structural formula, CH3CH(CH3)CH=CH2?
5. The number of
structural isomers of alkenes with the molecular formula C4H8
6. The bond angles in ethene are...
7. Which one of the
following is not a planar molecule?
8. Which one of the following statements about alkenes is not true?
they are unsaturated hydrocarbons
they undergo addition reactions
they can be attacked by electrophiles
9. Which one of the
following statements about cis and trans isomers is not true?
they are geometrical isomers
their atoms occupy similar positions in space
they have different melting points
10. Which one of the
following is statements about geometrical isomerism is not true?
it occurs in pent-1-ene
it is a form of stereoisomerism
it occurs in pent-2-ene
11. Which one of the
following isomers of molecular formula C4H8 can exist in
12. Which of the following
products is/are formed when HBr reacts with pent-2-ene?
13. Which one of the
following statements about the reaction between HBr and propene is not true?
it proceeds via an electrophilic addition mechanism
the intermediate organic species contains a carbocation
only 1-bromopropane is produced
14. The compound formed
when bromine reacts with but-1-ene is...
15. Which of the following
statements about the hydrogenation of alkenes is not true?
the reaction involves reduction of an alkene
the reaction can be catalysed by nickel
the reaction involves substitution
16. Which of the following
statements about the reaction between steam and ethene is not true?
it is a low temperature process
it uses a phosphoric acid catalyst
it produces ethanol
17. Which one of the
following compounds cannot undergo addition polymerisation?
18. The repeating unit in
a poly(propene) molecule is..
-[CH2 - CH2]-
-[CH2 - CH(CH3)]-
-[CH = C(CH3)]-
19. Which of the following
statements about poly(propene) is not true?
it is an addition polymer
it reacts readily with acids
it is used to make ropes and crates
20. Which of the following
statements about addition polymerisation is not true?
monomers are converted into polymers
some atoms in the monomers are not used in the polymer
saturated hydrocarbons don’t undergo addition
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