Which is expected to react most readily with bromine

Question

Which is expected to react most readily with bromine (A) CH3CH2CH3 (B) CH2 = CH2 (C) CH ≡ CH (D) CH3 - CH = CH2

Tardigrade Admin · Accepted Answer

Halogen addition is electrophilic addition and increasing order of reactivity towards halogen addition is
Alkane < Alkyne < Alkene
Alkynes are less reactive than alkene towards addition of halogen, the intermediate formed in case of alkyne is less stable:

In alkenes, more substituted alkenes are reactive towards

B r_{2} / C l_{2}

Q. Which is expected to react most readily with bromine

$C H_{3} C H_{2} C H_{3}$

$C H_{2} = C H_{2}$

$C H \equiv C H$

$C H_{3} - C H = C H_{2}$

Q. Which is expected to react most readily with bromine

CH3​CH2​CH3​

CH2​=CH2​

CH≡CH

CH3​−CH=CH2​

$C H_{3} C H_{2} C H_{3}$

$C H_{2} = C H_{2}$

$C H \equiv C H$

$C H_{3} - C H = C H_{2}$