Ethanol may be changed into ethene in one reaction step. Ethanol may be changed into bromoethane in one reaction step. At standard laboratory conditions, is a catalyst needed in these reactions?
- Aethanol to ethene: yes; ethanol to bromoethane: yes
- Bethanol to ethene: yes; ethanol to bromoethane: no
- Cethanol to ethene: no; ethanol to bromoethane: yes
- Dethanol to ethene: no; ethanol to bromoethane: no