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प्रश्न
Answer in brief.
Give the equations of the reactions for the preparation of phenol from isopropyl benezene.
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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.
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संबंधित प्रश्न
Answer in one sentence/ word.
Hydroboration-oxidation of propene gives _________.
The reagents used to convert phenol to 2,4,6-tribromophenol is _____________
What is the action of following reagents on pent-3-enal?
- H2/Ni
- LiAlH4/H3O+
What is the action of following on phenol at low temperature?
- dil. HNO3
- conc. H2SO4
- Br2/CS2
What is the action of conc. H2SO4 on carbolic acid at 373 K.
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.
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
Number of oxygen atoms present in salicylaldehyde are ______.
In the Lucas test for alcohols, the appearance of turbidity is due to the formation of ____________.
Bromination of phenol, will NOT give:
The number of isomeric alcohols possible with the formula C4H10O is ____________.
What is the product of the following reaction?
\[\ce{CH3 - CH2 - CH2 - OH ->[conc. H2SO4][\Delta]}\]
In Dow process, chlorobenzene is converted into phenol by ____________.
Which of the following is INCORRECT regarding phenol?
\[\ce{Isopropyl alcohol + acidic K2Cr2O7 -> X}\]
Identify product 'X' in the above reactions.
Which of the following conversion explains the acidic nature of alcohols?
Which among the following compounds is used to prepare solid fuel using calcium acetate?
Which among the following is allylic secondary alcohol?
Which among the following phenolic compound is most acidic in nature?
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
The major product obtained in the following reaction is
Write the chemical reaction when hot copper is treated with Vapours of 2° (secondary) alcohol.
What is the commercial method of preparation of phenol?
Arrange the following compounds in order of decreasing acidity:
The C−O−C angle in ether is about ______.
What is the name of isopropyl alcohol according to the carbinol system?
