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WAEC - Chemistry (1998 - No. 5)
What is the function of sulphur (IV) oxide in the reaction represented by the following equation? SO
2(aq)
+ 2H
2
S
(g)
→ 3S
(s)
+ 2H
2
O
(l)
Dehydrating agent
Oxidising agent
Bleaching agent
Acid
Precipitant
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