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Alcohols, Phenols and Ethers

Short Answer Type

251. Give equations of the following reactions:
Dilute HNO₃ with phenol.

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252. Give equations of the following reactions:

Treating phenol with chloroform in presence of aqueous NaOH.

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253.
Explain the following with an example:
Kolbe’s reaction.

Kolbe reaction: When sodium phenoxide is treated with carbon dioxide under pressure (4 to 7. atom) and at 400 K, sodium salicylate is formed, which on further reaction gives salicyclic acid.

This reaction is known as Kolbe’s reaction.

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254.

Explain the following with an example:
Reimer-Tiemann reaction.

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255.

Explain the following with an example:
Williamson ether synthesis.

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256. Explain the following with an example:
Unsymmetrical ether.

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257.

Write mechanism of acid dehydration of ethanol to yield ethene.

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258. How are the following conversions carried out?
Propene → Propan-2-ol.

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259. How are the following conversions carried out?
Benzyl chloride → Benzyl alcohol

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260. How are the following conversions carried out?
Ethyl magnesium chloride → propane-1-ol.

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Previous Year Papers

Test Series

Test Yourself

Short Answer Type

253. Explain the following with an example:Kolbe’s reaction.

253.
Explain the following with an example:
Kolbe’s reaction.