Advertisements
Advertisements
प्रश्न
What is the action of conc. H2SO4 on carbolic acid at 373 K.
Advertisements
उत्तर
At 373 K, carbolic acid (phenol) reacts with concentrated sulphuric acid to form p-phenolsulfonic acid.
APPEARS IN
संबंधित प्रश्न
Answer in one sentence/ word.
Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.
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.
Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.
Arrange the following in decreasing order of acid strength.
CH3OH, CH3–CH2–OH, CH3–CH(OH)–CH3, (CH3)3–C–OH
How will you bring about the following conversions?
acetone to 2-methylpropan-2-ol
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
Which alcohol is difficult to oxidise?
In the Lucas test for alcohols, the appearance of turbidity is due to the formation of ____________.
____________ is used for silvering mirrors.
In phenols, −OH group is attached to ___________ hybridised carbon.
Bromination of phenol, will NOT give:
The CORRECT decreasing order of boiling points for isomeric primary (1°), secondary (2°) and tertiary (3°) alcohols is ____________.
Phenoxide ion is more stable than phenol due to the ____________.
Which isomer of C4H10O is optically active?
The number of σ bonds in carbolic acid is ______.
Which of the following on oxidation yields ethyl methyl ketone?
Identify the product obtained when phenol is treated with bromine water?
Name the catalyst used in commercial method of preparation of phenol.
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
The order of reactivity of hydrogen halides with ether is as follows.
The major product obtained in the following reaction is
Explain the reaction of 1° and 2° alcohol with oxidising agent chromic anhydride (CrO3).
Write the product when 1°, 2° and 3° alcohol vapours are passed over hot copper.
Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) 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 ______.
