16. Write short notes on
17. What are electrophiles and nucleophiles? Give suitable examples for each.
18. Show the heterolysis of covalent bond by using curved arrow notation and complete the following equations. Identify the nucleophile is each case.
(i) CH3 - Br + KOH →
(ii) CH3 - OCH3 + HI →
19. Explain inductive effect with suitable example.
20. Explain electromeric effect.
21. Give examples for the following types of organic reactions
(i) β - elimination
(ii) electrophilic substitution.