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Haloalkanes and Haloarenes

Short Answer Type

151. Write the nucleophilic reaction for the conversion of haloalkanes to primary amine.

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152. Write the nucleophilic reaction for the conversion of haloalkanes to thio ether.

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153. Write the nucleophilic reaction for the conversion of haloalkanes to nitro alkane.

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154. Write the nucleophilic reaction for the conversion of haloalkanes to alkyl nitrite.

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155. Write the nucleophilic reaction for the conversion of haloalkanes to alkanes.

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156. When a haloalkane reacts with AgNO₂ then nitroalkane is formed but the reaction of KNO₂ with a haloalkane gives alkyl nitrite. Give reasons and write the two reactions.

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157. Give an example of elimination reaction shown by haloalkanes.

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158.
What is meant by dehydrohalogenation?

Dehydrohalogenation is the elimination reaction shown by a haloalkane which involves the removal of the halogen atom together with a hydrogen atom bonded to a C atom adjacent to C atom bearing the halogen. As a result of dehydro– halogenation an alkene is formed. For example: