Advertisements
Advertisements
Question
Write Kolbe’s reaction.
Advertisements
Solution
The treatment of sodium phenoxide with carbon dioxide at 398 K under the pressure of 6 atm followed by acid-hydrolysis, salicylic acid (o-hydroxybenzoic acid) is formed. This reaction is known as Kolbe’s reaction.
APPEARS IN
RELATED QUESTIONS
Choose the correct option.
Which is the most resistant alcohol towards oxidation reaction among the following?
Write two points of difference between the properties of phenol and ethyl alcohol.
Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.
When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________
With the help of chemical equations show what happens when cumene hydroperoxide is treated with dil. acid.
What is the action of following reagents on pent-3-enal?
- H2/Ni
- LiAlH4/H3O+
Write chemical equation of acetyl chloride with phenol
How will you bring about the following conversions?
isopropyl alcohol to acetone
Which alcohol is difficult to oxidise?
α-butylene when subjected to hydroboration oxidation reaction, yields ______.
Sodium metal with ethyl alcohol gives __________ gas.
Phenol is ____________.
Which of following elements does not react with hot concentrated sulphuric acid?
Cumene is used in the commercial method for the manufacture of ____________.
Identify 'A' and 'B' in the following series of reactions.
\[\ce{CH3 - CH = CH2 ->[HBr][Peroxide] A}\]
Identify A.
Phenoxide ion is more stable than phenol due to the ____________.
Which of the following is INCORRECT regarding phenol?
Which following reagent is used to obtain alkene from alcohol?
The number of σ bonds in carbolic acid is ______.
Which of the following on oxidation yields ethyl methyl ketone?
A reaction of phenol with chloroform in presence of sodium hydroxide to form salicylaldehyde is known as ____________.
Identify the compound having highest boiling point from the following?
The acid, which contains both -OH and -COOR groups is ______.
Which among the following is not the method of preparation of phenol?
The chemical test that distinguish between benzoic acid and phenol is ______.
What is the action of nitrous acid on aniline?
What is the commercial method of preparation of phenol?
Arrange the following compounds in order of decreasing acidity:
