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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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1681
What quantity of silver is deposited when 96500C of electricity is passed through a solution containing silver ions? (Ag = 108, 1F = 96500C)
A.
1.08g
B.
40g
C.
10,.8g
D.
21.6g
E.
108g
View Answer & Discuss (6)
WAEC 1988
1682
Bubbling of carbon (IV)oxide into calcium hydroxide solution results in the formation of
A.
CaCO
3
B.
CuCO
3
C.
ZnCO
3
D.
Na
2
CO
3
E.
MgCO
3
View Answer & Discuss (3)
WAEC 1988
1683
Which of the following is not decomposed by heat?
A.
CaCO
3
B.
CuCO
3
C.
ZnCO,sub>3
D.
Na
2
CO
3
E.
MgCO
3
View Answer & Discuss (2)
WAEC 1988
1684
Which of the following is not true of the rusting of iron?
A.
Rusting is a reduction process
B.
Rusting of iron takes place in the presence of oxygen and moisture
C.
the rust formed is reddish brown
D.
the major constituent of rust is hydrated iron (lll) oxide
E.
rusting is similar to burning
View Answer & Discuss (3)
WAEC 1988
1685
Which of the following is not true of the rusting of iron?
A.
Rusting is a reduction process
B.
Rusting of iron takes place in the presence of oxygen and moisture
C.
the rust formed is reddish brown
D.
the major constituent of rust is hydrated iron (lll) oxide
E.
rusting is similar to burning
View Answer & Discuss (3)
WAEC 1988
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