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Hydrocarbons

Question

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How will you explain the directive influence of alkyl group (in the case of toluene)?

Solution

The directive influence of alkyl group is explained with the help of hyperconjugation. This is shown with the help of methyl group in toluene.

Thus –CH₃ group is ortho and para directing.

Some More Questions From Hydrocarbons Chapter

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.

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

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