Chemistry 5070 · O Level · Alkenes

Alkenes — practice question

Which row gives the correct description of alkenes?

  • Ageneral formula $\text{C}_n\text{H}_{2n+2}$; result when shaken with aqueous bromine: no change
  • Bgeneral formula $\text{C}_n\text{H}_{2n+2}$; result when shaken with aqueous bromine: the aqueous bromine is decolourised
  • Cgeneral formula $\text{C}_n\text{H}_{2n}$; result when shaken with aqueous bromine: no change
  • Dgeneral formula $\text{C}_n\text{H}_{2n}$; result when shaken with aqueous bromine: the aqueous bromine is decolourised

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