Identify major product A in following reaction. 3-Bromo-2-methylpentane ak KoH A

Step-by-step solution

When alkyl halide having at least one -hydrogen is boiled with alcoholic solution of potassium hydroxide, it undergoes elimination of hydrogen atom from -carbon and halogen atom from -carbon resulting in the formation of an alkene. This reaction is known as dehydrohalogenation reaction or -elimination. The preferred product is that alkene which has greater number of alkyl groups attached to doubly bonded carbon atoms according to Saytzeff rule.