Dehydrohalogenation involves removal of the halogen atom together with a hydrogen atom from a carbon atom adjacent to the one with halogen atom. Alcoholic KOH is used for dehydrohalogenation. According to Saytzeff's rule, when two alkenes may be formed, the alkene which is most substituted is the major product. Question What are the products of dehydrohalogenation of 2-iodopentane?

Question

Dehydrohalogenation involves removal of the halogen atom together with a hydrogen atom from a carbon atom adjacent to the one with halogen atom. Alcoholic KOH is used for dehydrohalogenation. According to Saytzeff's rule, when two alkenes may be formed, the alkene which is most substituted is the major product. Question What are the products of dehydrohalogenation of 2-iodopentane? (A) 2-Pentene (major), 1-Pentene (minor) (B) 1-Pentene (major), 2-Pentene (minor) (C) 2-Pentene (50 %), 1-Pentene (50 %) (D) None of these

Tardigrade Admin · Accepted Answer

Correct answer is (a) 2-Pentene (major), 1-Pentene (minor)

$2$ -Pentene (major), $1$ -Pentene (minor)

$1$ -Pentene (major), $2$ -Pentene (minor)

$2$ -Pentene $(50%)$ , $1$ -Pentene $(50%)$

None of these

Correct answer is (a) $2$ -Pentene (major), $1$ -Pentene (minor)

2-Pentene (major), 1-Pentene (minor)

1-Pentene (major), 2-Pentene (minor)