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

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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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Alcohols and Phenols
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
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

Answer in one sentence/ word.

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


An ether (A), C5H12O, when heated with excess of hot HI produce two alkyl halides which on hydrolysis form compound (B) and (C), oxidation of (B) gave and acid (D), whereas oxidation of (C) gave a ketone (E). Deduce the structural formula of (A), (B), (C), (D), and (E).


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


Write the name of major product when anisole reacts HI at 398 K


Draw intramolecular hydrogen bonding structure in o-nitrophenol.


What is the action of following on phenol at low temperature?

  1. dil. HNO3
  2. conc. H2SO4
  3. Br2/CS2

Number of oxygen atoms present in salicylaldehyde are ______.


\[\ce{C3H8O ->[KMnO4][(Oxidation)] C3H6O2}\]

The compound C3H8O is a/an ____________.


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


The secondary alcohol is ____________.


Phenol is ____________.


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


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


____________ will NOT undergo acetylation.


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


Which of the following alcohols has tertiary allylic carbon?


In Raschig's method for synthesis of phenol, the reactants used are ____________.


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

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


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


Identify 'Z' in the following series of reaction:

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


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


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


Product (B) in this reaction is:


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


The major product obtained in the following reaction is 


What is the action of nitrous acid on aniline?


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


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