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Chapter 4: Problem 46

True or false: \begin{equation} \begin{array}{l}{\text { (a) Oxidation can occur without oxygen. }} \\ {\text { (b) Oxidation can occur without reduction. }}\end{array} \end{equation}

Short Answer

Expert verified
(a) True: Oxidation refers to the loss of electrons and is not limited to reactions involving oxygen, so it can occur without the presence of oxygen. (b) False: In redox reactions, oxidation and reduction must occur simultaneously - electrons lost by one species must be gained by another species. Hence, oxidation cannot occur without reduction.

Step by step solution

01

Understand oxidation

Oxidation is the process of losing electrons. While the term "oxidation" is derived from the element oxygen, the concept of oxidation is not limited to reactions involving oxygen.
02

Determine the truth of the statement

Since oxidation refers to the loss of electrons and is not limited to reactions involving oxygen, it is possible for oxidation to occur without the presence of oxygen. Therefore, statement (a) is True. Statement (b): "Oxidation can occur without reduction."
03

Understand reduction

Reduction is the process of gaining electrons. In any chemical reaction involving redox (reduction-oxidation) processes, one species loses electrons (oxidation) and another species gains electrons (reduction).
04

Determine the truth of the statement

In redox reactions, oxidation and reduction must occur simultaneously - electrons lost by one species must be gained by another species. Therefore, oxidation cannot occur without reduction. Statement (b) is False.

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