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581
The method of collection of gases prepared in the laboratory depend on their
A.
odour and atomicity
B.
colour and odour
C.
atomicity and density
D.
solubility and density
View Answer & Discuss (1)
WAEC 2004
582
Which of the following pairs of salts undergo hydrolysis?
A.
AlCI
3
and NH
4
CI
B.
AICI
3
and NaCI
C.
FeCI
3
and KCI
D.
Na
2
SO
4
and K
2
SO
4
View Answer & Discuss (8)
WAEC 2004
583
The alloy used extensively in the building industry is
A.
steel
B.
bronze
C.
duralumin
D.
type metal
View Answer & Discuss
WAEC 2004
584
Which of the following salts is not prepared by precipitation?
A.
Lead (ll) trioxocarbonate (lV)
B.
Barium trioxocarbonate (IV)
C.
Sodium trioxocarbnate (IV)
D.
Calcium trioxocarbonate (IV)
View Answer & Discuss (1)
WAEC 2004
585
What volume of hydrogen would be left over when 300cm
3
of oxygen and 1000cm of hydrogen are exploded in a sealed tube? [2H
2(g)
+ O
2(g)
→ 2H
2
O
g
]
A.
200 cm
3
B.
400 cm
3
C.
600cm
3
D.
700cm
3
View Answer & Discuss (3)
WAEC 2004
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