Details of two reactions involving ethene are given. Reaction 1 needs a nickel catalyst. Reaction 2 needs an acid catalyst. Which substance takes part in each reaction with ethene?
- Areaction 1: bromine; reaction 2: steam
- Breaction 1: bromine; reaction 2: hydrogen
- Creaction 1: hydrogen; reaction 2: bromine
- Dreaction 1: hydrogen; reaction 2: steam