2008 - JAMB Chemistry Past Questions and Answers - page 5
41
A red precipitate of copper (I) carbide is formed when ammonium solution of copper (I) chloride is introduced into
A
CH2 = CH - CH2 - CH3
B
CH3 CH2 - C ≡ CH
C
CH3 CH2 CH2 CH3
D
CH3 - C C - CH3
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42
Reduction of nitroalkanes, nitrites and amides is a route for the preparation of
A
amines
B
alkenes
C
polymers
D
detergents
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43
Reduction of alkanonoes with LialH4 produces
A
primary alkanols
B
secondary alkanols
C
tertiary alkanols
D
polyhydric alkanols
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44
The product obtained when a mixture of benzene vapour and hydrogen are passed over nickel catalyst at 180oC is
A
cyclohexane
B
cyclopentane
C
n- hexane
D
n - pentane
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45
Polyvinyl chloride is used in the production of
A
glass
B
alloy
C
pipes
D
ceramics
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46
Detergents are manufactured with straight hydrocarbon chains so as to make them
A
soluble
B
biodegradable
C
cheaper
D
foamy
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47
A
hydrogen chloride
B
hydrogen sulphide
C
nitrogen(ll) oxide
D
dinitrogen (l) oxide
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48
A
blue
B
orange
C
red
D
yellow
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49
A
A
B
B
C
C
D
D
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