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Alcohols, Phenols and Ethers

Long Answer Type

311. What happens when phenol reacts with bromine in solvent of low polarity like CS₂or CHCl₃ at low temperature? Give a mechanism for the reaction.

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Short Answer Type

312. When 3-methylbutan-2-ol is heated with HBr, the following reaction takes place:

Give a mechanism for this reaction.

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313. Show how would you synthesise the following alcohols from appropriate alkenes?

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314. Show how would you synthesise the following alcohols from appropriate alkenes?

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315. Show how would you synthesise the following alcohols from appropriate alkenes?

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316. Show how would you synthesise the following alcohols from appropriate alkenes?

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Long Answer Type

317.

Explain giving reasons:
(i) Boiling point of an alcohol is higher than the corresponding alkane.

(ii) Lower alcohols are soluble in water, while the higher alcohols are not.

(iii) Boiling point of mono hydric alcohols increases with increase in carbon atoms.

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