Question

which of the following is true for a substance that is oxidized in a chemical rection oxygen is added to it , hydrogen is removed from it , or both are true??​

Answer 1

$\Large\underline{\blue{\sf{Required\:answer:-}}}$

The chemical reaction in which the substance loses electrons or gains oxygen , (or) losing hydrogen is considered as Oxidation and the certain substance is said to oxidized .

A chemical reaction in which a substance gains electrons , removal of oxygen atom (or) adding of hydrogen atoms , is considered as Reduction.

Hence , Your Final answer is Both are true.

Answer 2

Answer:

\Large\underline{\blue{\sf{Required\:answer:-}}}

Requiredanswer:−

The chemical reaction in which the substance loses electrons or gains oxygen , (or) losing hydrogen is considered as Oxidation and the certain substance is said to oxidized .

A chemical reaction in which a substance gains electrons , removal of oxygen atom (or) adding of hydrogen atoms , is considered as Reduction.

Hence , Your Final answer is Both are true.