Question

identify the substance undergoes oxidation and reduction of following 3Mno2 plus 4Al gives 3Mn plus 2Al2O3 plus heat

Answer 1

Substance which is getting :-

☸️ Oxidised- Aluminium

☸️ Reduction - Manganese di oxide.

OXIDATION :-

oxidation is the process in which either oxygen is added to an element or hydrogen is removed from the element.

OXIDIZING AGENT :-

The agent due to which oxidation occurs is known as oxidising agent.

An oxidizing agent itself undergoes reduction.

REDUCTION :-

The process by which hydrogen is added to an element or oxygen is removed from an element is known as reduction.

REDUCING AGENT :-

The agent due to which reduction takes place is known as reducing agent.

A reducing agent itself undergoes oxidation.

So,

In the given equation :-

☸️ manganese dioxide is getting reduced to manganese.

This is due to the presence of aluminium which is the reducing agent in the reaction.

☸️ Aluminium is getting oxidised to Aluminium oxide.

This is due to the presence of manganese dioxide which is leading to the oxidation of aluminium.

Therefore, manganese dioxide is oxidizing agent.