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Haloalkanes and Haloarenes

Short Answer Type

141. Haloalkanes are insoluble in water. Give reason.

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Long Answer Type

142. How do the boiling points of R—Cl, R—Br and R—I show variations? Justify your answer.

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Short Answer Type

143. Haloalkanes react with KCN to form alkyl cyanides as main product while AgCN form isocyanides as the chief product. Give reason.

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144.

What are nucleophiles? Give some examples of nucleophiles.

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145.

Write the cause of chemical reactivity of haloalkanes.

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Long Answer Type

146. What do you understand by nucleophilic substitution reaction? Why do haloalkanes undergo nucleophilic substitution reaction?

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Short Answer Type

147. Write the nucleophilic reaction for the conversion of haloalkanes to alcohol.

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148. Write the nucleophilic reaction for the conversion of haloalkanes to ether.

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149. Write the nucleophilic reaction for the conversion of haloalkanes to alkyl iodide.

Alkyl iodides are often prepared by the reaction of alkyl chlorides or bromides with NaI in dry acetone. This reaction is known as Finkelstein reaction.

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150. Write the nucleophilic reaction for the conversion of haloalkanes to nitrite.

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