Ethanol is made by fermentation or by reacting ethene with steam. Which row is the correct one?
- Auses a temperature of $100\ ^\circ\text{C}$; uses a temperature of $350\ ^\circ\text{C}$
- Bneeds yeast as a catalyst; does not need a catalyst
- Cvery slow reaction; very fast reaction
- Dhigh yield of ethanol; low yield of ethanol