Question

define redox reaction??​

Answer 1

${\Large{\boxed{\pmb{\mathcal{\red{AnSwer~:}}}}}}$

Redox reactions involve electron transfers; if one species gains electrons, another species (or more than one species) must lose electrons.

Answer 2

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