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WAEC 2009
Chemistry 2009 WAEC Past Questions
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36
Consider the reaction represented by the equation: 2H
2
SO
4(aq0
+ C
(s)
→ 2H
2
O
(l)
+ 2SO
2(g)
+ CO
2(g)
H
2
SO
4
is acting as
A.
a catalyst
B.
an oxidizing agent
C.
a reducing agent
D.
a sulphonating agent
View Answer & Discuss (2)
WAEC 2009
37
Which of the following oxides of nitrogen has oxidation number of + 1?
A.
KNO
3
B.
N
2
O
C.
N
2
O
3
D.
NO
View Answer & Discuss
WAEC 2009
38
The separation of petroleum fractions depends on the differences in their
A.
boiling points
B.
molar masses
C.
melting point
D.
solubilities
View Answer & Discuss
WAEC 2009
39
Which of the following raw materials is used in the plastic industry ?
A.
Calcium
B.
Ethene
C.
Hydrogen
D.
Methane
View Answer & Discuss
WAEC 2009
40
The product of the reaction between C
2
H
5
OH and concentrated H
2
SO
4
at 170
o
C is
A.
(C
2
H
5
)
2
SO
4
B.
CH
3
CH
2
HSO
4
C.
(C
2
H
5
)
2
O
D.
CH
2
= CH
2
View Answer & Discuss (1)
WAEC 2009
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