When alkyl halides are treated with alcoholic KOH, the products are

How alkyl halides are obtained from alcohols ?

Alkyl halides on treatment with aqueous KOH give :

n- propyl bromide on treating with alcoholic KOH produces

Iodoethane is treated with alcoholic KCN and the product obtained is hydrolysed with dil. HCl. The final product is :

When iso-butyl magnesium bromide in dry ether is treated with absolute ethyl alcohol, the products formed are :