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 Multiple Choice QuestionsLong Answer Type

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221. Write a short note on Friedel Craft’s reaction ?


Friedel Craft's reaction are two types:
i)Friedel-Crafts alkylation:
ii)Friedel-Crafts acylation reaction: 

i) In Friedel Craft's benzene is treated with an alkyl halide in the presence of anhydrous aluminium chloride, alkylbenzene is formed.


(i) Using alkyl halide (alkylation reaction):



(ii) Friedel-Crafts acylation reaction: 
The reaction of benzene with an acyl halide or acid anhydride in the presence of Lewis acids (AlCl3) yields acyl benzene.



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222. Discuss the important addition reactions of benzene.
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223.

Discuss the oxidation reactions of arenes. 

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 Multiple Choice QuestionsShort Answer Type

224.

Write chemical equations for the combustion reaction of the following hydrocarbons:
Butane

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225.

Write chemical equations for the combustion reaction of the following hydrocarbons:
Pentene

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226.

Write chemical equations for the combustion reaction of the following hydrocarbons:
Hexyne

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227.

Write chemical equations for the combustion reaction of the following hydrocarbons:
Toluene

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228.

Write down the products of ozonolysis of 1, 2-dimethylbenzene (o-xylene). How does the result support Kekule structure for benzene?

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229. What happens when:

Benzene is treated with acetic anhydride in the presence of anhydrous AlCl3.
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230. What happens when:

Toluene is heated with a mixture of concentrated nitric acid and concentrated sulphuric acid at 303 K.
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