Advertisements
Advertisements
Question
Name the reagents used to convert phenol into
- picric acid
- p-benzoquinone
Advertisements
Solution
- Concentrated nitric acid in the presence of conc. H2SO4 is used to convert phenol into picric acid.
- Chromic anhydride or sodium dichromate in the presence of H2SO4 is used to convert phenol into p-benzoquinone.
APPEARS IN
RELATED QUESTIONS
Answer in one sentence/ word.
Hydroboration-oxidation of propene gives _________.
Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Answer in brief.
Explain why p-nitrophenol is a stronger acid than phenol.
Answer in brief.
Give the equations of the reactions for the preparation of phenol from isopropyl benezene.
What is the action of following reagents on pent-3-enal?
- H2/Ni
- LiAlH4/H3O+
Write the reaction involved in the preparation of phenol from benzene sulphonic acid.
Write the reactions for the preparation of carbolic acid from aniline.
Write chemical reactions to convert phenol into salicyaldehyde. Write the name of the reaction. What happens when if CCl4 is used instead of CHCl3 in the above reaction.
Which alcohol is difficult to oxidise?
Which of the following compounds does not react with bromine in alkaline medium?
Sodium metal with ethyl alcohol gives __________ gas.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
Propane when treated with cold cone. H2SO4 forms a compound which on heating with water gives ______.
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.
In Raschig's method for synthesis of phenol, the reactants used are ____________.
What is INCORRECT about the product written in the below given reaction?
\[\ce{R - CH2 - OH ->[PCC] R - COOH}\]
(I)
(II) \[\ce{P + Zn ->[\Delta] Q}\]
(III) \[\ce{P ->[Na2Cr2O7][H2SO4] R}\]
Q and R are respectively:
Which following reagent is used to obtain alkene from alcohol?
Which of the following alcohols is least soluble in water?
Which among the following is allylic secondary alcohol?
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 reacts immediately with Lucas reagent?
The major product obtained in the following reaction is
The structure of A in the given reaction is:
What is the name of isopropyl alcohol according to the carbinol system?
