Question

define reduction and oxidation.​

Answer 1

Redox is a type of chemical reaction in which the oxidation States of atoms are changed. Redox reactions are characterized by the transfer of electrons between chemical species,most often with one species undergoing oxidation while another species undergoes reduction........

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Answer 2

Oxidation:

Addition of a hydrogen atom to an element.

or

addition of electron to the valence shell of an isolated gaseous atom.

Reduction:

Removal of a hydrogen atom from an element.

or

Removal of electron from valence shell of an isolated gaseous atom.