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प्रश्न
What is the action of conc. H2SO4 on carbolic acid at 373 K.
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उत्तर
At 373 K, carbolic acid (phenol) reacts with concentrated sulphuric acid to form p-phenolsulfonic acid.
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संबंधित प्रश्न
Answer in one sentence/ word.
Hydroboration-oxidation of propene gives _________.
Oxidation of ethyl alcohol using K2Cr2O7/dil H2SO4 leads to formation of _______________
When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________
Reaction between hot conc. HI and anisole gives ______________
Write the reaction to get aspirin from salicylic acid.
Write the name of major product when anisole reacts HI at 398 K
Write the reaction involved in the preparation of phenol from benzene sulphonic acid.
Write the reactions for the preparation of carbolic acid from aniline.
In the Lucas test for alcohols, the appearance of turbidity is due to the formation of ____________.
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?
In phenols, −OH group is attached to ___________ hybridised carbon.
The secondary alcohol is ____________.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
What is the product of the following reaction?
\[\ce{CH3 - CH2 - CH2 - OH ->[conc. H2SO4][\Delta]}\]
The product 'C' in the following reaction is:
\[\ce{CH3CH2Br ->[alc. KCN] {'A'} ->[H3O^+][\Delta] {'B'} ->[i. LiAlH4][ii. H3O^+] {'C'}}\]
Sodium benzene sulphonate reacts with NaOH and then on acidic hydrolysis, it gives __________.
\[\ce{Isopropyl alcohol + acidic K2Cr2O7 -> X}\]
Identify product 'X' in the above reactions.
Which of the following alcohols is least soluble in water?
Identify the alcohol that reacts immediately with Lucas reagent?
Identify the compound amongst the following of which 0.1 M aqueous solution has highest boiling point.
The acid, which contains both -OH and -COOR groups is ______.
Product (B) in this reaction is:
The product C in the following reaction is
Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) alcohol.
Explain: Phenols are acid while alcohol is neutral.
What is the commercial method of preparation of phenol?
What is the name of isopropyl alcohol according to the carbinol system?
