GRE Subject Test: Chemistry : Free Radicals

Study concepts, example questions & explanations for GRE Subject Test: Chemistry

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Example Questions

Example Question #1 : Free Radicals

Which of the following steps of free radical chlorination does not produce a free radical as a product?

Possible Answers:

Initiation

Halogenation

Termination

Propagation

Correct answer:

Termination

Explanation:

The three steps of a free radical chlorination reaction are, in order, initiation, propagation, and termination.

Free radicals are produced in the initiation and propagation steps. The termination steps combine any two free radicals formed in the reaction to produce a compound that has no unpaired electrons (free radicals).

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