1. Write the systematic names for
2. Write the structural formulae and names of 3 isomers of pentene.
3. Identify the homologous series each of the following molecules belongs to and name the functional group present.
4. Draw the full structural formulae for each of the following compounds.
a) 2,4-dimethylheptane b) 3-ethyl-2-methylpentane c) Butan-2-ol
d) Pentan-1-ol e) Ethanoic acid f) butanoic acid
5. The percentage of carbon by mass in pentane is
A 85.7
B 83.3
C 81.8
D 29.4
6. Which of the following has isomeric forms?
A C2H3Cl
B C2H5Cl
C C2HCl
D C2H4Cl2
7. Which hydrocarbon is not a member of the same homologous series as the others?
8. Which of the following hydrocarbons always gives the same product when one of its hydrogen atoms is replaced by a chlorine atom.
A Hexane
B Hex-1-ene
C Cyclohexane
D Cyclohexene
9.
a) Give the systematic names for each of the above hydrocarbons,
b) Identify the two molecules which are isomers of each other.
c) Draw the full structural formula of the cycloalkane which is an isomer of E.
d) Draw the full structural formula of ALL the products obtained when
molecule E reacts with
i) chlorine
ii) hydrogen
iii) hydrogen bromide
e) Which of the above molecules would be produced by reforming octane?
10. Look at this reaction sequence and name reactants A and B.
11.The functional group in an alcohol is called the…
A hydride group
B hydroxyl group
C oxide group
D hydroxyl group
12. What is the general formula for the alcohol series?
A C nH2n +2 OH
B C nH2n -2 OH
C C nH2n – 1 OH
D C nH2n + 1 OH
13. What is the name of this molecule?
A Octan-3-ol
B Heptan-5-ol
C Octan-5-ol
D Heptan-3-ol
14. Which of the following is a primary alcohol?
15. Which of the following shows propan-2-ol?
16. What is the correct systematic name of this molecule?
A 2-methylbutan-1-ol
B 2-methylpropan-3-ol
C 3-methylbutan-1-ol
D 2-methylpropan-1-ol
17. Which of the following is an isomer of this molecule?
18. Butadiene is the first member of a homologous series of hydrocarbons called the dienes.
What is the general formula for this series?
A CnHn+2
B CnHn+3
C CnH2n
D CnH2n-2
19. The structural formula for a trihydric alcohol will have three….
A carbon atoms
B hydrogen atoms
C methyl groups
D hydroxyl groups
20. What is the systematic name of this molecule?
A Ethan-1,1-diol
B Ethane-1,2-diol
C Ethan-1,1-ol
D Ethan-1,2-ol
21. What is meant by a hydroxyl group?
22. Write the general formula for the alkanoic acids.
23. Name and draw the functional group found in all carboxylic acids.
24. Draw the structural formulae for the following carboxylic acids:
a) Pentanoic acid
b) 2-methylpropanoic acid
c) Benzoic acid
