An alkyl halide with beta-hydrogen atoms when reacted with a base or a nucleophile has two competing routes: substitution (S_(N)1 and S_(N)2) and elimination. Which route will be taken up depends upon the nature of the alkyl halide, strength and size of the base/nucleophile and reaction conditions. thus, bulkier nucleophile prefers to act as a base and abstracts a proton rather than approaching a tetravalent carbon atom (steric reaction) and vice-versa. Q. Isopropyl bromide on heating with a concentrated solution of alcoholic (ethanolic) KOH predominantly gives

An alkyl halide with beta-hydrogen atoms when reacted with a base or a

1.	An alkyl halide with beta-hydrogen atoms when reacted with a base or a nucleophile has two competing routes: substitution (S_(N)1 and S_(N)2) and elimination. Which route will be taken up depends upon the nature of the alkyl halide, strength and size of the base/nucleophile and reaction conditions. thus, bulkier nucleophile prefers to act as a base and abstracts a proton rather than approaching a tetravalent carbon atom (steric reaction) and vice-versa. Q. Isopropyl bromide on heating with a concentrated solution of alcoholic (ethanolic) KOH predominantly gives
Answer» Propene Propan-2-ol Propan-1-ol Isopropyl ETHYL ether Solution :`C_(2)H_(5)O^(-)Na^(+)` is a strong BASE, therefore, heating isopropyl BROMIDE with `C_(2)H_(5)O^(-)Na^(+)//C_(2)H_(5)OH` brings about dehydrohalogenation to yield propene.