In the Reaction of Cl₂ with Ethane and UV Light

question 50

Multiple Choice

In the reaction of Cl₂ with ethane and UV light, which of the following reactions would be a chain termination event(s) ?
I. Cl∙ + CH₃-CH₃ → CH₃-CH₂-Cl + H∙
II. Cl∙ + CH₃-CH₃ → CH₃-H₂C∙ + HCl
III. Cl∙ + CH₃-H₂C∙ → CH₃-CH₂-Cl
IV. Cl₂ + CH₃-H₂C∙ → CH₃-CH₂-Cl + Cl∙
V. Cl_{2 + UV light} → C l∙ + Cl∙

• A) reaction V
• B) reactions I and IV
• C) reactions III and IV
• D) reactions I and II
• E) reaction III

---

Definitions:

Iso-

A prefix indicating equality, uniformity, or similarity in certain scientific and technical contexts.

Dia-

A prefix meaning through, across, or apart, used in various medical and scientific terms.

-pnea

A suffix used in medical terms to denote a condition related to breathing, such as apnea (absence of breathing) or dyspnea (difficulty breathing).

Prefix

A group of letters placed at the beginning of a word to alter its meaning or create a new word, such as “un-” in “unhappy”.