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946
Sodium hydroxide is prepared commercially from sodium chloride solution by?
A.
electrolysis using mercury as cathode
B.
hydrolysis in steam using a catalyst
C.
electrolysis using iron as anode
D.
treating sodium chloride with ammonia and carbon (IV) oxide
View Answer & Discuss (2)
JAMB 1997
947
A sample of a substance containing only C and H burns in excess O
2
to yield 4.4g of CO
2
and 2.7 g of H
2
O. The empirical formula of a substance is?
(C = 12, O = 16, H = 1)
A.
CH
3
B.
CH
2
C.
CH
4
D.
C
2
H
24
View Answer & Discuss (25)
JAMB 1997
948
An undesirable paraffin in the petroleum industry which is particularly prone to knocking is?
A.
iso-octane
B.
n-heptane
C.
iso-heptane
D.
n-octane
View Answer & Discuss (5)
JAMB 1997
949
The reaction of an alkanol with an alkanoic acid in the presence of concentrated H
2
SO
4
will produce an?
A.
alkanal
B.
alkanoate
C.
alkanone
D.
alkyne
View Answer & Discuss
JAMB 1997
950
The final product of the reaction of ethyne with hydrogen iodide is?
A.
CH
3
—CHI
2
B.
CH
2
l—CH
2
I
C.
CH
3
—CI
3
D.
CH
2
= CHI
View Answer & Discuss (16)
JAMB 1997
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