Archive
7th of September 2015
Chemistry
Q:

oxidation and reduction is occur together. Is it applicable to combation reaction to such as mg+o2=mgO in this reaction which one is oxidising agent and reducing agent

Adiba Arif Ansari - CBSE - Class X

Monday, September 07, 2015 at 18:50:PM

A:

The given combination reaction is as follows:

2Mg + O2  → 2MgO

Oxidation state of Mg  and O2 is zero.

oxidation state of Mg is +2 and O is -2 in the product MgO

Thus Mg is oxidised to Mg+2 and for O2 is reduced to -2.

Hence, oxygen is oxidising agent and magnesium is reducing agent in the given combination reaction.

Monday, September 07, 2015 at 19:07:PM