Discuss the mechanism of formation of halohydrin.

Solution

The reaction between alkenes and chlorine or bromine in the presence of water leads to the formation of halohydrins. In general, the reaction can be represented as:

Mechanism. It is an electrophilic addition reaction involving the following steps:
Step I. Formation of carbocation:

Step II. Attack of nucleophile (H₂O) on carbocation:

Step III. Loss of proton:

Some More Questions From Hydrocarbons Chapter

For Daily Free Study Material Join wiredfaculty

Hydrocarbons

Discuss the mechanism of formation of halohydrin.

Some More Questions From Hydrocarbons Chapter

Alkanes are less reactive. Why?

Out of n-pentane, isopentane and neopentane which has lower boiling point?

During the pyrolysis of alkanes C-C bonds break in preference to C-H bond. Why?

Define cracking.

What is the function of iodic acid in the iodination of alkanes? Can we use any other substance in its place?

What is alternation effect?

Arrange the following compounds in order of their increasing boiling points:
n-Pentane, n-Hexane, Ethane, 2-2-Dimethylpentane, 2-Methylpentane.

Why is light or heat necessary to initiate chlorination reaction of alkanes?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Phone Number

Email Address

Loaction

For Daily Free Study Material Join wiredfaculty

Hydrocarbons

Discuss the mechanism of formation of halohydrin.

Some More Questions From Hydrocarbons Chapter

Alkanes are less reactive. Why?

Out of n-pentane, isopentane and neopentane which has lower boiling point?

During the pyrolysis of alkanes C-C bonds break in preference to C-H bond. Why?

Define cracking.

What is the function of iodic acid in the iodination of alkanes? Can we use any other substance in its place?

What is alternation effect?

Arrange the following compounds in order of their increasing boiling points:n-Pentane, n-Hexane, Ethane, 2-2-Dimethylpentane, 2-Methylpentane.

Why is light or heat necessary to initiate chlorination reaction of alkanes?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Arrange the following compounds in order of their increasing boiling points:
n-Pentane, n-Hexane, Ethane, 2-2-Dimethylpentane, 2-Methylpentane.