Sorbic acid is used as a food preservative because it destroys fungi and moulds. In the presence of a nickel catalyst, sorbic acid reacts with hydrogen, and it also reacts with bromine in an organic solvent. How many moles of hydrogen and of bromine are added to one mole of sorbic acid in these reactions?
- Amoles of hydrogen: $2$; moles of bromine: $2$
- Bmoles of hydrogen: $2$; moles of bromine: $2\tfrac{1}{2}$
- Cmoles of hydrogen: $3$; moles of bromine: $2$
- Dmoles of hydrogen: $3$; moles of bromine: $2\tfrac{1}{2}$