Which of the Following Is a Possible Step to Terminate

question 98

Multiple Choice

Which of the following is a possible step to terminate a chain in the radical polymerization of ethylene?

• A)ROOR + CH₂ CH₂ → ROCH₂CH₂OR
• B)CH₂ CH₂ + CH₂ CH₂ → CH₃CH CHCH₃
• C) ∙ RO∙ + CH₂ CH₂ → ROCH₂ CH₂
• D) ∙ ∙ ROCH₂CH₂ + CH₂ CH₂ → ROCH₂CH₂CH₂CH₂
• E) ∙ 2 RO-[CH₂CH₂]_n-CH₂CH₂ → RO-[CH₂CH₂]_n-CH₂CH₂CH₂CH₂-[CH₂CH₂]_n-OR

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Definitions:

Crepitus

A crackling or grating sound or sensation produced under the skin and joints or a crackling sensation due to the presence of air in the subcutaneous tissue.

Pulsations

Rhythmic beatings or throbs, often referring to the palpable heartbeat or arteries reflecting the cardiac cycle.

Radial Pulse

The pulse felt at the wrist on the side of the thumb, indicative of heart rate and rhythm.