Question

Ma'am I had a doubt that,

Loss of e- is termed as oxidation.
And gain of oxygen is termed as oxidation.

But when O²- is added to a substance it gain e- so it should be reduction?​

Answer 1

gaining of oxygen is known as oxidation.

losing or removal of Oxygen and is known as reduction

I hope it will help u

Answer 2

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Oxidation is the loss of electrons. Reduction is the gain of electrons. Oxidation and reduction always occur together, even though they can be written as separate chemical equations.

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