Q4. (a) Give a simple visual chemical test, indicating the observations, used to differentiate between the following pair of organic compounds. (3 marks) (i) (b) and and H Give a name to the following functional groups. (ii) (iii) (iv) (4 marks) (c) In keto-enol tautomerism the enol form of 2.4-hexanedone is preferred over the keto form. However, the keto form of acetone is preferred over the enol form (2 marks)