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Hydrocarbons

Short Answer Type

61.

Suggest the name of a Lewis acid other than anhydrous aluminium chloride which can be used during ethylation of benzene.

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62.

Classify the following groups as activating or deactivating with respect to further electrophilic substitution of aromatic ring:
(a) – Cl (b) -CN
(c) – NH₂ (d) –SO₃H
(e) –NO₂ (f) – CH₃.

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63.
Define Wurtz Reaction?

Alkyl halides on treatment with sodium metal in dry ethereal solution give higher alkanes. This reaction is known as Wurtz reaction and is used for the preparation of higher alkanes containing an even number of carbon atoms.