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Chemistry
WAEC 1992
Chemistry 1992 WAEC Past Questions
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21
Which of the following gases will have the highest rate of diffusion under the same conditions? (H = 1, C =12, O = 16, S = 32, CI = 35.5)
A.
O
2
B.
CI
2
C.
HCI
D.
H
2
S
E.
CO
2
View Answer & Discuss (3)
WAEC 1992
22
The formula (CH
3
),
3
COH is that of a
A.
polyhdric alkanol
B.
secondary alkanol
C.
tertiary alkanol
D.
primary alkanol
E.
trihydric alkanol
View Answer & Discuss (3)
WAEC 1992
23
What is the number of oxygen atoms in 32g of the gas? (O = 16, L = 6.0 X 10\(^{23}\) mol\(^{-1}\))
A.
3.2 X 10
23
B.
6.0 X 10
23
C.
1.2 X 10
24
D.
1.6 X 10
24
E.
2.0 X 10
24
View Answer & Discuss (17)
WAEC 1992
24
Which of the following compounds is not correct about the reaction of sodium material for the manufacture of plastics?
A.
Ethyne
B.
Ethane
C.
Monochloroethene
D.
Propene
E.
Butadiene
View Answer & Discuss
WAEC 1992
25
The energy required to remove the most loosely bound electron from an atom in the gaseous state is known as the
A.
bond energy
B.
ionization energy
C.
potential energy
D.
activation energy
E.
kinetic energy
View Answer & Discuss (2)
WAEC 1992
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