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CBSE - Class 12 Chemistry Alcohols Worksheet

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

Write equations of the following reactions: Bromination of anisole in ethanoic acid medium.

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

Write structures of the compounds whose IUPAC names are as follows: 3-Cyclohexylpentan-3-ol

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

Give a mechanism for this reaction. (Hint : The secondary carbocation formed in step II rearranges to a more stable tertiary carbocation by a hydride ion shift from 3rd carbon atom.

Give IUPAC names of the following ethers:

Explain the following with an example. Williamson ether synthesis.

Write structures of the compounds whose IUPAC names are as follows: Cyclohexylmethanol

Write chemical reaction for the preparation of phenol from chlorobenzene.

10.

Write IUPAC names of the following compounds:

11.

Give reason for the higher boiling point of ethanol in comparison to methoxymethane.

12.

Preparation of ethers by acid dehydration of secondary or tertiary alcohols is not a suitable method. Give reason.

13.

Write structures of the compounds whose IUPAC names are as follows: 4-Chloro-3-ethylbutan-1-ol.

14.

Name the reagents used in the following reactions: Dehydration of propan-2-ol to propene.

15.

Write the mechanism of hydration of ethene to yield ethanol.

16.

Write the names of reagents and equations for the preparation of the following ethers by Williamson’s synthesis: 2-Methoxy-2-methylpropane

17.

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

18.

Write the mechanism of acid dehydration of ethanol to yield ethene.

19.

Write structures of the compounds whose IUPAC names are as follows: Cyclopent-3-en-1-ol

20.

You are given benzene, conc. \(H_{2}SO_{4}\) and \(NaOH\). Write the equations for the preparation of phenol using these reagents.

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