Hydrocarbons Question 233
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 $ Br_2 $ water (iv) Addition of HBr to alkynes in presence of peroxide proceeds via Markownikoff’s rule
Options:
A) (i) and (ii)
B) (ii) and (iii)
C) (i) and (iv)
D) (ii) and (iv)
Show Answer
Answer:
Correct Answer: C
Solution:
[c] 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 reactive towards the electrophilic reaction.
Addition of $ HB _{r} $ in the presence of peroxide follows anti-markownikoff-’s Rule.
BETA
