Which of the Following Is the First Chain Propagating Step

question 43

Multiple Choice

Which of the following is the first chain propagating step in the radical polymerization of ethylene?

• A)ROOR + CH₂ CH₂ → ROCH₂CH₂OR
• B)∙ RO∙ + CH₂ CH₂ → ROCH₂CH₂
• C)RO∙ + CH₂ CH₂ → ROCH CH₂ + H∙
• D)∙ ∙ ROOR + CH₂ CH₂ → 2 ROH + CH CH
• E)∙ ∙ 2RO∙ + CH₂ CH₂ → 2 ROH + CH CH

---

Definitions:

Bloodstream

The flowing body of blood that circulates throughout the body through arteries, veins, and capillaries, delivering oxygen and nutrients to tissues and removing carbon dioxide and waste products.

Respiration

The process by which living organisms inhale oxygen and exhale carbon dioxide, essential for life.

Catastrophic Earthquake

A massive and highly destructive earthquake, often resulting in significant loss of life, property damage, and environmental change.

Acculturative Stress

The psychological impact of adapting to a new culture, including anxiety, depression, and identity confusion.