Question

Select the oxidising agent for the following reaction:
H2S + I2 > 2HI + S
(a) I2
(b) H2S
(C) HI
(d) S

Answer 1

Oxidising agent for the reaction

H2S + I2 -----> 2HI + S is I2.

• Oxidising agent is the compound that oxidises another compound but itself gets reduced.

• Reducing agent is that compound that reduces another compound and itself gets oxidised.

• In a reaction when both oxidation and reduction occurs it is called redox reaction.

• Here, we can find the Oxidising and reducing agent by oxidation number method.

• If oxidation number of a compound increases then it is oxidised and if it decreases then it is reduced.

In this case, oxidation number of iodine on LHS is 0 and on RHS is -1, therefore I2 is reduced and acts as Oxidising agent.

Therefore, option A, I2 is correct.

Answer 2

Answer:

Answer: a

Explanation:

Because it reduces the amount of hydrogen

so, it is the oxidising agent