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Chemistry · Oct / Nov 2020 · Paper 11 · Question 34

5070Alkanes

Chlorine reacts with methane. Which row is correct?

  1. ACl2 + CH4 → CH2Cl2 + H2; methane and chlorine gases are mixed in the presence of ultraviolet light
  2. BCl2 + CH4 → CH2Cl2 + H2; methane is bubbled into concentrated aqueous chlorine
  3. CCl2 + CH4 → CH3Cl + HCl; methane and chlorine gases are mixed in the presence of ultraviolet light
  4. DCl2 + CH4 → CH3Cl + HCl; methane is bubbled into concentrated aqueous chlorine

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Correct answer: C. Cl2 + CH4 → CH3Cl + HCl; methane and chlorine gases are mixed in the presence of ultraviolet light

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