The given statement “a health-related website recommended taking small amounts of iodine as antioxidant to prevent aging” is to be explained. Concept Introduction: Oxidation is the addition of an electronegative element or the removal of an electropositive element in a chemical reaction . Reduction is the addition of an electropositive element or the removal of an electronegative element in a chemical reaction. A chemical reaction in which oxidation process and reduction process take place simultaneously is called a redox reaction. An oxidizing agent is a substance that has the capacity to oxidize the other substances and get reduced in a chemical reaction. A reducing agent is a substance that has the capacity to reduce the other substances and get oxidized in a chemical reaction. An antioxidant is a reducing agent. The reducing agent loses electrons easily in the chemical reaction. It reduces the other substances and gets oxidized in the oxidation-reduction reaction. Iodine is an oxidizing agent. So, iodine will not work as an antioxidant.

Question

Q5: Label each chiral carbon in the following molecules as R or S. Make sure the stereocenter to which each of your R/S assignments belong is perfectly clear to the grader. (8pts) R OCH 3 CI H S 2pts for each R/S HO R H !!! I OH CI HN CI R H

Answer 1

Question

Chapter 14, Problem 40E

Interpretation Introduction

Interpretation:

The given statement “a health-related website recommended taking small amounts of iodine as antioxidant to prevent aging” is to be explained.

Concept Introduction:

Oxidation is the addition of an electronegative element or the removal of an electropositive element in a chemical reaction.

Reduction is the addition of an electropositive element or the removal of an electronegative element in a chemical reaction.

A chemical reaction in which oxidation process and reduction process take place simultaneously is called a redox reaction.

An oxidizing agent is a substance that has the capacity to oxidize the other substances and get reduced in a chemical reaction.

A reducing agent is a substance that has the capacity to reduce the other substances and get oxidized in a chemical reaction.

An antioxidant is a reducing agent. The reducing agent loses electrons easily in the chemical reaction. It reduces the other substances and gets oxidized in the oxidation-reduction reaction.

Iodine is an oxidizing agent. So, iodine will not work as an antioxidant.

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