Question

2 bromo 3 methylpentane is heated with potassium ethoxide in ethanol,te msjor productis

Answer 1

When Bromo pentameter is heated with potassium ethos idea in ethanol.The major product obtained is :-

1.Pent-1-ene

2.Cis-pent-2-ene

3.Trans-pent-2-ene

4.2-ethoxypentane

From the above the correct answer will be 3. trans-pent-2-ene

When alkyl halide reacts with Alkaline. KOH then it favours elimination reaction (Dehydrohalogenation). Since, trans-pentane-2 is more symmetrical than cisco isomers. Hence, it is main product.