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Hydrocarbons

Question

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How does acetylene react with:
(i) Gaseous chlorine
(ii) Liquid bromine?

Solution

(i) With gaseous chlorine: Acetylene reacts with gaseous chlorine to form di or tetrachloride.

(ii) With liquid bromine: Acetylene reacts with liquid bromine to form tetrabromo derivative.

The red colour of bromine is discharged indicating the presence of unsaturation in the molecule.

Some More Questions From Hydrocarbons Chapter

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.

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

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