Question

Mno2 + 4hcl ———–> mncl2 + 2h2o + cl2 1. name the substance oxidised. 2. name the oxidising agent. 3. name the substance reduced. 4. name the reducing agent.

Answer 1

The substance oxidised is 4 HCl
The substance reduced is MnO2
Oxidising agent is MnO2
and reducing agent is 4 HCl...

I hope it helps you...

Answer 2

Answer:

For 1: The correct answer is HCl.

For 2: The correct answer is $MnO_2$

For 3: The correct answer is $MnO_2$

For 4:The correct answer is HCl.

Explanation:

The substance which gets oxidized will undergo oxidation reaction. Oxidation reaction is defined as the chemical reaction in which a substance looses electrons. The oxidation state of these species gets increased.

$X\rightarrow X^{n+}+ne^-$

The substance which gets reduced will undergo reduction reaction. Reduction reaction is defined as the chemical reaction in which a substance gains electrons. The oxidation state of these species gets reduced.

$X^{n+}+ne^-\rightarrow X$

Oxidizing agent is defined as the species which itself gets reduced and helps the other substance to get oxidized. It undergoes reduction reaction.

Reducing agent is defined as the species which itself gets oxidized and helps the other substance to get reduced. It undergoes oxidation reaction.

For the given chemical reaction:

$MnO_2+4HCl\rightarrow MnCl_2+2H_2O+Cl_2$

On the reactant side:

Oxidation state of Manganese = +4

Oxidation state of Chlorine = -1

On the product side:

Oxidation state of Manganese = +2

Oxidation state of Chlorine = 0

As, oxidation state of manganese gets reduced, this is getting reduced and is considered as an oxidizing agent and oxidation state of chlorine is getting increased, this is getting oxidized and is considered as an reducing agent.