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1296
A piece of filter paper moistened with lead (ll) ethanoate solution turns black when the paper is dropped into a gas likely to be
A.
sulphur (VI) oxide
B.
hydrogen chloride
C.
sulphur (VI) oxide
D.
hydrogen sulphide
View Answer & Discuss (1)
JAMB 2012
1297
Which of the following gases has a characteristic pungent smell, turns red litmus paper blue and forms dense white fumes with hydrogen chloride gas?
A.
N
2
B.
N
2
O
C.
CI
2
D.
NH
3
View Answer & Discuss (6)
JAMB 2012
1298
Commercial bleaching can be carried out using
A.
sulphur (IV) oxide and ammonia
B.
hydrogen sulphide and chlorine
C.
chlorine and sulphur (IV) oxide
D.
ammonia and chlorine
View Answer & Discuss (1)
JAMB 2012
1299
Mineral acids are usually added to commercial hydrogen peroxide to
A.
oxidize it
B.
decompose it
C.
minimize its decomposition
D.
reduce it to water and oxygen
View Answer & Discuss (3)
JAMB 2012
1300
Which of the following compounds will burn with a brick-red colour in a non-luminous Bunsen flame?
A.
LiCI
B.
NaCl
C.
CaCl
2
D.
MgCl
2
View Answer & Discuss (4)
JAMB 2012
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