2H2S+SO2→3S+2H2O?

Which of the following is happening in the given reaction?

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H2S gets oxidised.

SO2 gets reduced.

H2S gets reduced.

Both 1 and 2

answer is D.

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Detailed Solution

In the reaction, 2H2S+SO2→3S+2H2O, H2S gets oxidised, and SO2 gets reduced.
The given reaction is a type of redox reaction. Redox reactions are those in which both oxidation and reduction reactions take place at the same time. An oxidation reaction is described as the loss of an electron. During this reaction, the oxidation number rises. An atom gains electrons during a reduction reaction, which is what the term refers to. During this reaction, the atom's oxidation number decreases.
From the above-given reaction:
H2S→S + 2H+ + 2e−
The oxidation state of Sulphur changes from -2 to 0
Sulphide has been oxidised, and sulphur dioxide is the oxidising agent.
from SO2 →2S
oxidation state changes from +4 to 0

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