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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
Choose the correct option.
Which is the most resistant alcohol towards oxidation reaction among the following?
Answer in brief.
Give the reagents and conditions necessary to prepare phenol from Benzene sulfonic acid.
Answer in brief.
Explain why p-nitrophenol is a stronger acid than phenol.
With the help of chemical equations show what happens when cumene hydroperoxide is treated with dil. acid.
An unknown alcohol is treated with Lucas reagent. Explain how you will determine whether the alcohol is primary, secondary or tertiary. Indicate by chemical equation the reaction between isopropyl alcohol and Lucas reagent.
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 alcohol is difficult to oxidise?
Which of the following compounds does not react with bromine in alkaline medium?
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Sodium metal with ethyl alcohol gives __________ gas.
The CORRECT decreasing order of boiling points for isomeric primary (1°), secondary (2°) and tertiary (3°) alcohols is ____________.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
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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 ____________.
Identify reagents X, Y and Z.
The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.
Which isomer of C4H10O is optically active?
The number of σ bonds in carbolic acid is ______.
A reaction of phenol with chloroform in presence of sodium hydroxide to form salicylaldehyde is known as ____________.
Which of the following alcohols is NOT prepared by reduction of carbonyl compounds?
Identify the compound having highest boiling point from the following?
Name the catalyst used in commercial method of preparation of phenol.
What is the product formed when aniline is treated with \[\ce{NaNO2 + HCl}\] previous to hydrolysis?
The product C in the following reaction is
What is the commercial method of preparation of phenol?
Arrange the following compounds in order of decreasing acidity:
