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2286
Which of the following factors does not affect the rate of reaction of CaCO
3
with HCI?
A.
temperature of the reaction
B.
solubility of the CaCO
3
C.
concentration of the HCI
D.
surface area of the CaCO
3
View Answer & Discuss
WAEC 2005
2287
When X is heated with manganese (IV) oxide, oxygen is produced X is
A.
KCI
B.
KCIO
3
C.
CaCO
3
D.
ZnCO
3
View Answer & Discuss (1)
WAEC 2005
2288
Which of the following statements is not a postulate of the kinetic theory of gases?
A.
Molecules move with the same speed
B.
intermolecular forces are negligible
C.
Molecules are in a state of constant random motion
D.
collision between molecules is elastic
View Answer & Discuss
WAEC 2005
2289
HNO3 does not usually react with metals to liberate hydrogen because HNO3 is
A.
a strong acid
B.
a corrosive acid
C.
an oxidizing agent
D.
a nitrating agent
View Answer & Discuss (8)
WAEC 2005
2290
Which of the following is not an acid anhydride?
A.
P
2
O
5
B.
NO
2
C.
SO
2
D.
CO
View Answer & Discuss (5)
WAEC 2005
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