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प्रश्न
Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.
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उत्तर
The reagents and conditions required to prepare phenol from chlorobenzene are:
Reagents: \[\ce{NaOH, dil HCl}\]
Conditions: Temperature 623 K and Pressure 300 atm
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संबंधित प्रश्न
Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Reaction between hot conc. HI and anisole gives ______________
Arrange the following in decreasing order of acid strength.
CH3OH, CH3–CH2–OH, CH3–CH(OH)–CH3, (CH3)3–C–OH
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 equation of acetyl chloride with phenol
Write the reactions for the preparation of carbolic acid from aniline.
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?
____________ is used for silvering mirrors.
Which of the following reagents are required in the conversion of phenol to salicylic acid?
Phenol is obtained from cumene ____________.
Bromination of phenol, will NOT give:
The CORRECT decreasing order of boiling points for isomeric primary (1°), secondary (2°) and tertiary (3°) alcohols is ____________.
Which of following elements does not react with hot concentrated sulphuric acid?
The product 'C' in the following reaction is:
\[\ce{CH3CH2Br ->[alc. KCN] {'A'} ->[H3O^+][\Delta] {'B'} ->[i. LiAlH4][ii. H3O^+] {'C'}}\]
Carbolic acid is oxidised by acidified sodium dichromate to give ______.
The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.
Which among the following compounds is used to prepare solid fuel using calcium acetate?
Which of the following alcohols is least soluble in water?
Which of the following compounds does NOT react with sodium metal?
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 ____________.
Which of the following alcohols is NOT prepared by reduction of carbonyl compounds?
The compound which reacts fastest with Lucas reagent at room temperature is ______.
Identify the compound amongst the following of which 0.1 M aqueous solution has highest boiling point.
The chemical test that distinguish between benzoic acid and phenol is ______.
The order of reactivity of hydrogen halides with ether is as follows.
Explain the reaction of 1° and 2° alcohol with oxidising agent chromic anhydride (CrO3).
Arrange the following compounds in order of decreasing acidity:
