The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is

Question

The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is (A) 3o < 2o < 1o (B) 3o > 2o >1o (C) 3o < 2o > 1o (D) 3o > 2o < 1o

Tardigrade Admin · Accepted Answer

According to Saytzeff rule, any alkyl halide that gives a more highly substituted (more stable) alkene undergoes dehydrohalogenation faster than the one which gives a less highly substituted (less stable) alkene. Thus, the ease of dehydrohalogenation of different alkyl halides having the same halogen decreases in the order tertiary (3°)> secondary (2°)> primary (1°)

Q. The ease of dehydrohalogenation of alkyl halide with alcoholic $K O H$ is

$3^{o} < 2^{o} < 1^{o}$

$3^{o} > 2^{o} > 1^{o}$

$3^{o} < 2^{o} > 1^{o}$

$3^{o} > 2^{o} < 1^{o}$

Q. The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is

3o<2o<1o

3o>2o>1o

3o<2o>1o

3o>2o<1o

Q. The ease of dehydrohalogenation of alkyl halide with alcoholic $K O H$ is

$3^{o} < 2^{o} < 1^{o}$

$3^{o} > 2^{o} > 1^{o}$

$3^{o} < 2^{o} > 1^{o}$

$3^{o} > 2^{o} < 1^{o}$