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BASIC CHEMISTRY
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Introduction to the tetravalency of carbon
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Aromatic hydrocarbons e.g. benzene - structure, properties and uses
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1161
Aluminium is extracted commercially from its ore by?
A.
heating aluminium oxide with coke in a furance
B.
the electrolysis of fused aluminium oxide in cryolite
C.
treating cryolite with sodium hydroxide solution under prressure
D.
heating sodium aluminium silicate to a high temperature
View Answer & Discuss (2)
JAMB 1988
1162
Given the reactions (i) Fe
(s)
+ X(NO
3
)
2(aq)
→ Fe(NO
3
) + X
(s)
(ii) H
2(g)
+ XO
→ X
+ H
2
O
(s)
; X is likely to be?
A.
copper
B.
zinc
C.
calcium
D.
lead
View Answer & Discuss (7)
JAMB 1988
1163
Crude copper can be purified by the electrolysis of CuSO
4(aq)
if?
A.
platinum electrodes are used
B.
the crude copper is made the anode of the cell
C.
the crude copper is made the cathode of the cell
D.
crude copper electrodes are used
View Answer & Discuss (7)
JAMB 1988
1164
Methylethanoate reacts with ammonia to yield?
A.
mettylamine and ethanol
B.
ethylamine and methanol
C.
methanamide and ethanol
D.
ethanamide and methanol
View Answer & Discuss (3)
JAMB 1988
1165
Alkanoates are formed by the reaction of alkanoic acid with?
A.
Alkyl halides
B.
alkanols
C.
ethers
D.
sodium
View Answer & Discuss (4)
JAMB 1988
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