Which of the following statements is(are) true?
Oxidation and reduction
i.cannot occur independently of each other.II.accompany all chemical changes.III.describe the loss and gain of electron(s), respectively.IV.result in a change in the oxidation states of the species involved.
A) I only
B) II only
C) III only
D) IV only
E) I, III, and IV

Question

Quizplus · Accepted Answer

I is true because oxidation cannot occur without reduction and vice versa.
III is true because oxidation involves the loss of electrons and reduction involves the gain of electrons.
IV is true because oxidation and reduction involve a change in the oxidation state (the number of electrons an atom has gained or lost) of the species involved.
II is not always true because not all chemical reactions involve oxidation and reduction.

Which of the Following Statements Is(are) True