(a) Give a chemical test to distinguish between saturated and unsaturated hydrocarbons. (b) (i) Name the products formed when ethanol burns in air. (ii) What two forms of energy are liberated on burning alcohol? (c) Why is the reaction between methane and chlorine considered a substitution reaction?
(a) Bromine water test is used to distinguish between saturated and unsaturated hydrocarbons. (b) When ethanol is burnt in air, carbon dioxide and water are formed. (c) In a reaction of methane and chlorine, H is displaced by Cl. Hence, it is called substitution reaction.
