Question

The chemical process in which electrons are gained by an atom or an ion is called(1) addition(2) oxidation(3) reduction(4) substitution

Answer 1

(3) reduction

Step-by-step explanation

The chemical process in which electrons are gained by an atom or an ion is called reduction.

Reduction is the transfer of electrons between species in a chemical reaction where there is a process of gaining electrons or a decrease in the oxidation state of an element.