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Chemistry · May / June 2023 · Paper 42 · Question 5

0620

As printed in the paper

The question as text

Propane and propene both react with chlorine.

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme
  • 5(a)(i)[1]

    substitution

  • 5(a)(ii)[1]

    provide activation energy

  • 5(a)(iii)[1]

    photochemical

  • 5(a)(iv)[2]

    C3H8 + Cl2 → C3H7Cl + HCl

    M1 HCl M2 equation correct

  • 5(b)(i)[1]

    it has a carbon-carbon bond which is not a single bond

  • 5(b)(ii)[1]

    CH3CHClCH2Cl

  • 5(c)[4]

    M1 displayed formula of propan-1-ol

    M2 displayed formula of propan-2-ol

    M3 propan-1-ol

    (as either name)

    M4 propan-2-ol (under displayed formula of propan-2-ol)

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