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Introduction to the tetravalency of carbon
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1861
The carbon atoms on ethane are
A.
sp
2
hybridized
B.
sp
3
hybridized
C.
sp
4
hybridized
D.
sp hybridized
View Answer & Discuss (2)
JAMB 2017
1862
According to Charle's law, the volume of a gas becomes zero at
A.
−100°c
B.
−273°c
C.
−373°c
D.
0°c
View Answer & Discuss (3)
JAMB 2017
1863
An oxide XO
2
has a vapour density of 32. What is the atomic mass of X?
A.
20
B.
32
C.
14
D.
12
View Answer & Discuss (2)
JAMB 2017
1864
The gas that can be collected by downward displacement of air is
A.
chlorine
B.
sulphur (IV) oxide
C.
carbon (IV) oxide
D.
ammonia
View Answer & Discuss (18)
JAMB 2017
1865
In the laboratory preparation of trioxonitrate (V) acid the nitrogen(iv) oxide formed as a by-product is removed by
A.
further heating
B.
adding concentrated H
2
SO
4
C.
cooling the acid solution with cold water
D.
bubbling air through the acid solution
View Answer & Discuss (3)
JAMB 2017
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