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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Name the reagents used to convert phenol into picric acid p-benzoquinone

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प्रश्न

Name the reagents used to convert phenol into

  1. picric acid
  2. p-benzoquinone
टीपा लिहा
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उत्तर

  1. Concentrated nitric acid in the presence of conc. H2SO4 is used to convert phenol into picric acid.
  2. Chromic anhydride or sodium dichromate in the presence of H2SO4 is used to convert phenol into p-benzoquinone.
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पाठ 11: Alcohols, Phenols and Ethers - Short Answer Questions (Type-Ⅰ)

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एससीईआरटी महाराष्ट्र Chemistry [English] Standard 12 Maharashtra State Board
पाठ 11 Alcohols, Phenols and Ethers
Short Answer Questions (Type-Ⅰ) | Q 4

संबंधित प्रश्‍न

Answer in brief.

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


Reaction between Grignard reagent and aldehyde other than formaldehyde leads to formation of _______________


Reaction between hot conc. HI and anisole gives ______________


An organic compound gives hydrogen on reaction with sodium metal. It forms an aldehyde with molecular formula C2H4O on oxidation with pyridinium chlorochromate. Give the chemical equations in support of these observations.


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


Which of the following reagents are required in the conversion of phenol to salicylic acid?


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


α-butylene when subjected to hydroboration oxidation reaction, yields ______.


Sodium metal with ethyl alcohol gives __________ gas.


Phenol is ____________.


Propane when treated with cold cone. H2SO4 forms a compound which on heating with water gives ______.


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

Identify A.


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


The most resistant alcohol towards oxidation reaction is:


Which of the following reagents is used to convert phenol to benzene?


The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.


Identify the product B in following conversion.

\[\ce{Chlorobenzene + H2O ->[Cu, 673 K][Pressure] A ->[conc. H2SO4][373 K] B}\]


Which of the following alcohols is least soluble in water?


The number of σ bonds in carbolic acid is ______.


A reaction of phenol with chloroform in presence of sodium hydroxide to form salicylaldehyde is known as ____________.


Name the catalyst used in commercial method of preparation of phenol.


Identify the compound amongst the following of which 0.1 M aqueous solution has highest boiling point.


What is the product formed when aniline is treated with \[\ce{NaNO2 + HCl}\] previous to hydrolysis?


Which of the following compounds reacts immediately with Lucas reagent?


The product C in the following reaction is


Write the product when 1°, 2° and 3° alcohol vapours are passed over hot copper.


Write the chemical reaction when hot copper is treated with Vapours of 1° (primary) alcohol.


Convert the following :

cumene to phenol.


Propene can be converted into propan-1-ol by:


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