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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] 12 Standard HSC
पाठ 11 Alcohols, Phenols and Ethers
Short Answer Questions (Type-Ⅰ) | Q 4

संबंधित प्रश्‍न

Write two points of difference between the properties of phenol and ethyl alcohol.


Answer in brief.

Give the reagents and conditions necessary to prepare phenol from Benzene sulfonic acid.


Write IUPAC name of crotonyl alcohol.


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 ____________.


Number of oxygen atoms present in salicylaldehyde are ______.


Sodium metal with ethyl alcohol gives __________ gas.


The secondary alcohol is ____________.


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

Identify A.


In Dow process, chlorobenzene is converted into phenol by ____________.


Sodium benzene sulphonate reacts with NaOH and then on acidic hydrolysis, it gives __________.


The most resistant alcohol towards oxidation reaction is:


Which of the following alcohols has tertiary allylic carbon?


What is INCORRECT about the product written in the below given reaction?

\[\ce{R - CH2 - OH ->[PCC] R - COOH}\]


(I) 

(II) \[\ce{P + Zn ->[\Delta] Q}\]

(III) \[\ce{P ->[Na2Cr2O7][H2SO4] R}\]

Q and R are respectively:


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


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 ____________.


Identify the role of PDC from the following.


Ethyl alcohol can be prepared from a Grignard reagent by the reaction of ______.


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


The chemical test that distinguish between benzoic acid and phenol is ______.


Arrange O - H, C - H and N - H bonds in increasing order of their bond polarity.


Arrange the following compounds in an increasing order of their solubility in water:


Convert the following :

cumene to phenol.


What is the commercial method of preparation of phenol?


Arrange the following compounds in order of decreasing acidity:


The structure of A in the given reaction is:


Which of the following is primary benzylic alcohol?


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