Identify the incorrect statement/statements: (i) Alkynes are more reactive than alkenes towards electrophilic addition reaction (ii) Alkynes are less reactive than alkenes towards electrophilic addition reaction (iii) Alkynes decolourise Br2 water (iv) Addition of HBr to alkynes in presence of peroxide proceeds via Markownikoff's rule .

Question

Identify the incorrect statement/statements: (i) Alkynes are more reactive than alkenes towards electrophilic addition reaction (ii) Alkynes are less reactive than alkenes towards electrophilic addition reaction (iii) Alkynes decolourise Br2 water (iv) Addition of HBr to alkynes in presence of peroxide proceeds via Markownikoff's rule . (A) (i) and (ii) (B) (ii) and (iii) (C) (i) and (iv) (D) (ii) and (iv)

Tardigrade Admin · Accepted Answer

More is the s-character more is its electrophilic nature out of alkenes and alkyne. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/b506673a193372b5802c524ab0e98de9-.png" /> Thus alkynes are more reactive than alkenes towards nucleophilic reaction and less reactive towards the electrophilic reaction. Addition of HBr in the presence of peroxide follows anti- Markownikoffs Rule.

(i) and (ii)

(ii) and (iii)

(i) and (iv)

(ii) and (iv)

More is the s-character more is its electrophilic nature out of alkenes and alkyne. Thus alkynes are more reactive than alkenes towards nucleophilic reaction and less reactive towards the electrophilic reaction. Addition of HBr in the presence of peroxide follows anti- Markownikoffs Rule.

More is the s-character more is its electrophilic nature out of alkenes and alkyne.

Thus alkynes are more reactive than alkenes towards nucleophilic reaction and less reactive towards the electrophilic reaction.
Addition of $H B r$ in the presence of peroxide follows anti- Markownikoffs Rule.