1. Hydrocarbons Part Nat 4 1 2 3 4 5 6 7 8 9 10 11 12

2. What type of carbon to carbon bonds are present in the alkanes and the cycloalkanes
Single - saturated

3. What type of carbon to carbon bond is present in the alkenes
C=C unsaturated

4. Unsaturated hydrocarbons (alkenes) decolourise bromine
Describe the chemical test to distinguish an unsaturated alkene from a saturated alkane/cycloalkane.
Unsaturated hydrocarbons (alkenes) decolourise bromine

5. ADDITION Name the type of reaction which takes place when an
unsaturated alkene reacts with bromine,
hydrogen or water
ADDITION

6. Name the product of the reaction between butene and hydrogen
BUTANE

7. Name the type of chemical reaction taking place.
C5H Br C5H10Br2
Addition

8. Name the new homologous series produced by cracking long chain hydrocarbons.
Alkenes

9. Name the method of producing ethanol from glucose.
Fermentation

10. Name the process used to increase the ethanol concentration in ‘spirit’ drinks.
Distillation

11. What can ethanol be mixed with to provide a fuel for cars?
Petrol

12. Is ethanol an renewable or non-renewable source of energy?

13. Name the type of chemical reaction which takes place when esters are formed.
Condensation