Question

Which of the following organic compound will give a mixture
of 1-chlorobutane and 2-chlorobutane on chlorination?
(a) CH₃ - CH - CH = CH₂
|
CH₃
H
|
(b) HC ≡ C - C = CH₂
(c) CH₂ = CH – CH = CH₂
(d) CH₂ = CH – CH₂ – CH₃

Answer 1

Explanation:

d part is the correct answer

Answer 2

CH₂ = CH – CH₂ – CH₃ is the correct compound.

Explanation:

• Chlorination using hydrogen chloride on alkenes follow the Markovnikov's addition rule.

• The addition is an electrophilic addition.

• Here the hydrogen chloride breaks into Proton and chloride.

• The Proton gets attached to the alkene forming a carboncation.

• Then rearrangements can occur to form more stable carboncation.

• Then chlorine attacks and makes the product.

• Here if the double bond is present in 1st carbon then only the products 1-chlorobutane and 2-chlorobutane can form.

• So the correct option is option 4.

For more information about electrophilic addition,

https://brainly.in/question/7790406

List the following alkenes in decreasing order of reactivity towards electrophilic addition:

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Why do alkenes prefer to undergo electrophilic addition reaction while arenes prefer electrophilic substitution reactions? Explain.