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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.

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प्रश्न

Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.

सविस्तर उत्तर
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उत्तर

The reagents and conditions required to prepare phenol from chlorobenzene are:

Reagents: \[\ce{NaOH, dil HCl}\]

Conditions: Temperature 623 K and Pressure 300 atm

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

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 11 Alcohols, Phenols and Ethers
Exercises | Q 3.4 | पृष्ठ २५३

संबंधित प्रश्‍न

Answer in one sentence/ word.

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


Answer in brief.

Explain why phenol is more acidic than ethyl alcohol.


Oxidation of ethyl alcohol using K2Cr2O7/dil H2SO4 leads to formation of _______________


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


Arrange the following in decreasing order of acid strength.

CH3OH, CH3–CH2–OH, CH3–CH(OH)–CH3, (CH3)3–C–OH


Name the reagents used to convert phenol into

  1. picric acid
  2. p-benzoquinone

Which alcohol is difficult to oxidise?


In the Lucas test for alcohols, the appearance of turbidity is due to the formation of ____________.


____________ is used for silvering mirrors.


Which of the following compounds is obtained, when phenol react with bromine water?


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


Bromination of phenol, will NOT give:


Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.


Which of following elements does not react with hot concentrated sulphuric acid?


The number of isomeric alcohols possible with the formula C4H10O is ____________.


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


Carbolic acid is oxidised by acidified sodium dichromate to give ______.


Phenoxide ion is more stable than phenol due to the ____________.


Which isomer of C4H10O is optically active?


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


Identify the product X in the following reaction.

\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]


Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?


Which of the following compounds has lowest boiling point?


Which among the following is not the method of preparation of phenol?


The product C in the following reaction is


Explain: Phenols are acid while alcohol is neutral.


Arrange the following compounds in order of decreasing acidity:


The C−O−C angle in ether is about ______.


What is the name of isopropyl alcohol according to the carbinol system?


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