Chemistry 9701 · AS & A Level · Halogen compounds

Halogen compounds — practice question

Propene may be changed into propan-2-ol in two steps, as set out by the equations below. reaction 1: $\text{CH}_3\text{CH}=\text{CH}_2\text{(g)} + \text{HI(g)} \rightarrow \text{CH}_3\text{CHICH}_3\text{(l)}$ reaction 2: $\text{CH}_3\text{CHICH}_3\text{(l)} + \text{KOH(aq)} \rightarrow \text{CH}_3\text{CH(OH)CH}_3\text{(aq)} + \text{K}^+\text{(aq)} + \text{I}^-\text{(aq)}$ In what way can these two reactions be classified?

  • Areaction 1: addition; reaction 2: elimination
  • Breaction 1: addition; reaction 2: substitution
  • Creaction 1: elimination; reaction 2: substitution
  • Dreaction 1: substitution; reaction 2: elimination

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