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1391
Which of the following is NOT involved in the extraction of metals from their ores?
A.
reduction with carbon
B.
reduction with other metals
C.
reduction by electrolysis
D.
oxidation with oxidizing agents
View Answer & Discuss (8)
JAMB 1989
1392
When excess chlorine is mixed with ethene at room temperature, the product is
A.
1,2 - dichloroethane
B.
1,2 - dichloroethene
C.
1,1 - dichloroethane
D.
1, 1 - dichloroethene
View Answer & Discuss (19)
JAMB 1989
1393
Vulcanization of rubber is a process by which
A.
isoprene units are joined to produce rubber
B.
rubber latex is coagulated
C.
sulphur is chemically combined in the rubber
D.
water is removed from the rubber
View Answer & Discuss
JAMB 1989
1394
The reaction between ethanoic acid and sodium hydroxide is an example of
A.
esterification
B.
neutralization
C.
hydroxylation
D.
hydrolysis
View Answer & Discuss (9)
JAMB 1989
1395
The bond which joins two ethanoic acid molecules in the liquid state is
A.
a covalent bond
B.
an ionic bond
C.
a dative covalent bond
D.
a hydrogen bond
View Answer & Discuss (1)
JAMB 1989
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