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.

Question

Quizplus · Accepted Answer

I is true because oxidation involves the loss of electrons and reduction involves the gain of electrons. Thus, they cannot occur independently of each other.
II is generally true because oxidation and reduction usually occur together in chemical reactions. However, it is possible to have chemical reactions where neither oxidation nor reduction occurs.
III is true because oxidation involves the loss of electron(s) and reduction involves the gain of electron(s).
IV is true because oxidation involves an increase in oxidation state (losing electrons) and reduction involves a decrease in oxidation state (gaining electrons).

Which of the Following Statements Is(are) True? Oxidation and Reduction