Advertisements
Advertisements
Question
Write the reactions for the preparation of carbolic acid from aniline.
Advertisements
Solution
Aniline is treated with nitrous acid [NaNO2 + HCl] at low temperature to obtain benzene diazonium chloride, which on hydrolysis gives carbolic acid (phenol).
APPEARS IN
RELATED QUESTIONS
Choose the correct option.
Which is the most resistant alcohol towards oxidation reaction among the following?
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 a simple chemical test to distinguish between ethanol and ethyl bromide.
Arrange the following in decreasing order of acid strength.
CH3OH, CH3–CH2–OH, CH3–CH(OH)–CH3, (CH3)3–C–OH
Write IUPAC name of crotonyl alcohol.
Write the reaction involved in the preparation of phenol from benzene sulphonic acid.
What is the action of following on phenol at low temperature?
- dil. HNO3
- conc. H2SO4
- Br2/CS2
How will you bring about the following conversions?
2-methyl propan-2-ol to 2-methylpropene
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
____________ is used for silvering mirrors.
Which of the following reagents are required in the conversion of phenol to salicylic acid?
Which of the following compounds does not react with bromine in alkaline medium?
Which of the following compounds is obtained, when phenol react with bromine water?
Bromination of phenol, will NOT give:
Identify 'A' and 'B' in the following series of reactions.
The product 'C' in the following reaction is:
\[\ce{CH3CH2Br ->[alc. KCN] {'A'} ->[H3O^+][\Delta] {'B'} ->[i. LiAlH4][ii. H3O^+] {'C'}}\]
In Dow process, chlorobenzene is converted into phenol by ____________.
What is INCORRECT about the product written in the below given reaction?
\[\ce{R - CH2 - OH ->[PCC] R - COOH}\]
Which among the following is allylic secondary alcohol?
Identify the alcohol that reacts immediately with Lucas reagent?
Identify the product X in the following reaction.
\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]
Name the catalyst used in commercial method of preparation of phenol.
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
What is the product obtained in Reimer - Tiemann reaction?
What is the action of nitrous acid on aniline?
Arrange O - H, C - H and N - H bonds in increasing order of their bond polarity.
Explain the reaction of 1° and 2° alcohol with oxidising agent chromic anhydride (CrO3).
Arrange the following compounds in order of decreasing acidity:
