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Question 10

Butane, C4H10\text{C}_4\text{H}_{10}C4​H10​, reacts with chlorine in the presence of ultraviolet radiation to form a mixture of chlorinated products. Which equation represents a propagation step in the mechanism for this reaction?

A

Cl2→⋅Cl+⋅Cl\text{Cl}_2 \rightarrow \cdot\text{Cl} + \cdot\text{Cl}Cl2​→⋅Cl+⋅Cl

B

⋅Cl+⋅C4H8Cl→C4H8Cl2\cdot\text{Cl} + \cdot\text{C}_4\text{H}_8\text{Cl} \rightarrow \text{C}_4\text{H}_8\text{Cl}_2⋅Cl+⋅C4​H8​Cl→C4​H8​Cl2​

C

⋅Cl+C4H9Cl→⋅C4H8Cl+HCl\cdot\text{Cl} + \text{C}_4\text{H}_9\text{Cl} \rightarrow \cdot\text{C}_4\text{H}_8\text{Cl} + \text{HCl}⋅Cl+C4​H9​Cl→⋅C4​H8​Cl+HCl

D

C4H9Cl+⋅Cl→C4H8Cl2+⋅H\text{C}_4\text{H}_9\text{Cl} + \cdot\text{Cl} \rightarrow \text{C}_4\text{H}_8\text{Cl}_2 + \cdot\text{H}C4​H9​Cl+⋅Cl→C4​H8​Cl2​+⋅H

Markscheme

Alkanes Questions

  1. A Level
  2. /Chemistry
  3. /Alkanes

15 exam-style questions on OCR A A Level Chemistry Alkanes. Each one has a worked solution and a mark scheme showing where the marks go.

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