Advertisements
Advertisements
प्रश्न
Answer in brief.
Give the equations of the reactions for the preparation of phenol from isopropyl benezene.
Advertisements
उत्तर
Isopropylbenzene: This is the commercial method of preparation of phenol. Isopropylbenzene (Cumene) on air oxidation in presence of Conaphthenate gives cumene hydroperoxide, which on decomposition with dilute acid gives phenol with acetone as a valuable by-product.
APPEARS IN
संबंधित प्रश्न
Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Write two points of difference between the properties of phenol and ethyl alcohol.
Write the reaction involved in the preparation of phenol from benzene sulphonic acid.
Name the reagents used to convert phenol into
- picric acid
- p-benzoquinone
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 of the following compounds is obtained, when phenol react with bromine water?
Bromination of phenol, will NOT give:
Propane when treated with cold cone. H2SO4 forms a compound which on heating with water gives ______.
Cumene is used in the commercial method for the manufacture of ____________.
\[\ce{CH3 - CH = CH2 ->[HBr][Peroxide] A}\]
Identify A.
Which of the following alcohols has tertiary allylic carbon?
The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.
Which of the following alcohols is least soluble in water?
The number of σ bonds in carbolic acid is ______.
Identify 'Z' in the following series of reaction:
\[\ce{Butan - 2 - ol ->[PCl3] X ->[alco. KOH] Y ->[i) H2SO4][ii) H-OH/heat] Z}\]
Identify the reagent A used in the following conversion.
\[\ce{Phenol ->[A] Benzoquinone}\]
Identify the alcohol that reacts immediately with Lucas reagent?
Which among the following phenolic compound is most acidic in nature?
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
Which of the following compounds has lowest boiling point?
Which among the following is not the method of preparation of phenol?
Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) alcohol.
What is the commercial method of preparation of phenol?
The structure of A in the given reaction is:
