Question

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

Answer 1

Answer:

I₂ is oxidising agent.

Explanation:

Here, Hydrogen is removed from H₂S [Removal of hydrogen is oxidation]. And H₂S is changing in S. I₂ is removing hydrogen from H₂S. Therefore, Iodine is oxidising agent.

And, If we see reducing agent.

Then, Hydrogen is added to iodine. [Addition of hydrogen is reduction]. Means Iodine is changing in HI. Hydrogen sulphide is providing Hydrogen for reduction. So, H₂S is reducing agent.

More about oxidising agent and reducing agent :

Oxidising agent : The substances which gives oxygen and substances which remove hydrogen are called oxidising agent.

Reducing agent : The substances which gives hydrogen and substances which remove oxygen are called reducing agent.

Answer 2

Required Answer :-

I₂

Know More :-

Chemical reaction - A chemical reaction is a reaction in which elements mix or displace to form a new substance.

Example -

H + O₂ = H₂O

In which one mole of hydrogen combines with two moles of oxygen to form water.

In a balanced reaction :-

Mass of reactants = Mass of products