Advertisements
Advertisements
प्रश्न
Which of the following reactions will yield phenol?
| (i) |  |
| (ii) |  |
| (iii) |  |
| (iv) |  |
Advertisements
उत्तर
| (i) | |
| (ii) | |
| (iii) | |
Explanation:
Haloarene requires extreme conditions for nucleophilic substitution reaction. Chlorobenzene does not undergo hydrolysis on treatment with aqueous \[\ce{NaOH}\] at 298 K and 1 atm.
APPEARS IN
संबंधित प्रश्न
How do you convert the following:
Aniline to phenol
Give the equations of reactions for the preparation of phenol from cumene.
Write chemical reaction for the preparation of phenol from chlorobenzene.
You are given benzene, conc. H2SO4 and NaOH. Write the equations for the preparation of phenol using these reagents.
Write the structures of main products when benzene diazonium chloride (C6 H5 N+2CI−)C6 H5 N2+CI- reacts with the : HBF4/∆
Write the structures of main products when benzene diazonium chloride (C6 H5 N+2CI−)C6 H5 N2+CI- reacts with the :Cu/HBr
What happens when Phenol is oxidised with Na2Cr2O7/H+?
Why phenol undergoes electrophilic substitution more easily than benzene?
Sodium salt of benzene sulphonic acid on fusion with caustic soda gives ____________.
Name the starting material used in the industrial preparation of phenol.
What happens when reactions:
N-ethylethanamine reacts with benzenesulphonyl chloride.
Benzoic acid reacts with cone. HNO3 and HiSO4 to give:
Name the catalyst used in the commercial method of preparation of phenol.
In the reaction, alcohol + diazomethane → ether + N2; the ether cannot be ______.
Consider the above reactions, the product A and product B respectively are:
A compound 'X' is acidic and it is soluble in NaOH solution, but insoluble in NaHC0 3 solution. Compound 'X' also gives violet colour with neutral FeCI3 solution. The compound 'X' is:
Match List - I with List - II.
| List I | List II | ||
| (A) |  |
(I) | Br2 in CS2 |
| (B) | (II) | Na2Cr2O7/H2SO4 | |
| (C) |  |
(III) | Zn |
| (D) |  |
(IV) | CHCl3/NaOH |
Choose the correct answer from the options given below:
