Give two reactions of electrophilic addition on acetylene along with their mechanism.

Solution

(i) The addition of halogen: Chlorine and bromine add on to acetylene to form addition product.

Mechanism: It involves electrophilic addition and consists of the following steps:

Step II. The electrophilic addition is repeated again when the final compound gets formed.

(ii) The addition of hydrogen halides. The hydrogen halides (HCl, HBr or HI) add-on triple bond to give rise to haloalkene or haloalkane.

Mechanism: It involves electrophilic addition and consists of the following steps:

Some More Questions From Hydrocarbons Chapter

Which metal is used in Wurtz’s reaction?

Name the metal which is a constituent of Grignard's reagent.

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Hydrocarbons

Give two reactions of electrophilic addition on acetylene along with their mechanism.

Some More Questions From Hydrocarbons Chapter

Which metal is used in Wurtz’s reaction?

Name the metal which is a constituent of Grignard's reagent.

Name the products formed when an ethereal solution containing ethyl iodide and methyl iodide is heated with sodium metal.

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.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Hydrocarbons

Give two reactions of electrophilic addition on acetylene along with their mechanism.

Some More Questions From Hydrocarbons Chapter

Which metal is used in Wurtz’s reaction?

Name the metal which is a constituent of Grignard's reagent.

Name the products formed when an ethereal solution containing ethyl iodide and methyl iodide is heated with sodium metal.

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.

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.