WAEC - Chemistry (1994 - No. 26)

What is the molar of hydrogen sulphide gas in the reaction H2SO4(aq) + 3H2S(g) → 4S(s) + 4H2O (l)n represented by the following equation?
Reducing agent
A bleaching agent
A dehydrating agent
A sulphonating agent
An oxidizing agent

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