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Answer in brief. Give the equations of the reactions for the preparation of phenol from isopropyl benezene.

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प्रश्न

Answer in brief.

Give the equations of the reactions for the preparation of phenol from isopropyl benezene.

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उत्तर

Isopropylbenzene: This is the commercial method of preparation of phenol. Isopropylbenzene (Cumene) on air oxidation in presence of Conaphthenate gives cumene hydroperoxide, which on decomposition with dilute acid gives phenol with acetone as a valuable by-product.

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अध्याय 11: Alcohols, Phenols and Ethers - Exercises [पृष्ठ २५३]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
अध्याय 11 Alcohols, Phenols and Ethers
Exercises | Q 3.5 | पृष्ठ २५३

संबंधित प्रश्न

Choose the correct option.

Which is the most resistant alcohol towards oxidation reaction among the following?


Answer in one sentence/ word.

Hydroboration-oxidation of propene gives _________.


Answer in one sentence/ word.

Write the name of the electrophile used in Kolbe’s Reaction.


When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________


The reagents used to convert phenol to 2,4,6-tribromophenol is _____________


Write the reaction to get aspirin from salicylic acid.


What is the action of following reagents on pent-3-enal?

  1. H2/Ni
  2. LiAlH4/H3O+

Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.


In phenols, −OH group is attached to ___________ hybridised carbon.


Sodium metal with ethyl alcohol gives __________ gas.


Bromination of phenol, will NOT give:


Cumene is used in the commercial method for the manufacture of ____________.


What is the product of the following reaction?

\[\ce{CH3 - CH2 - CH2 - OH ->[conc. H2SO4][\Delta]}\]


Identify 'A' and 'B' in the following series of reactions.


\[\ce{CH3 - CH = CH2 ->[HBr][Peroxide] A}\]

Identify A.


Which of the following conversion explains the acidic nature of alcohols?


Which of the following alcohols is least soluble in water?


Which of the following compounds does NOT react with sodium metal?


Identify 'Z' in the following series of reaction:

\[\ce{Butan - 2 - ol ->[PCl3] X ->[alco. KOH] Y ->[i) H2SO4][ii) H-OH/heat] Z}\]


Identify the product obtained when phenol is treated with bromine water?


Identify the role of PDC from the following.


The acid, which contains both -OH and -COOR groups is ______.


Which of the following compounds has lowest boiling point?


Explain the reaction of 1° and 2° alcohol with oxidising agent chromic anhydride (CrO3).


The structure of A in the given reaction is:


Which of the following is primary benzylic alcohol?


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