Advertisements
Advertisements
प्रश्न
Why ortho-nitrophenol is steam volatile while para-nitrophenol is not?
Advertisements
उत्तर
In o-nitrophenol, oxygen in the NO2 group forms an intramolecular hydrogen bond with hydrogen in the hydroxide group. While in the p-nitrophenol, oxygen in the NO2 group of one molecule forms an intermolecular hydrogen bond with hydrogen in the hydroxide group of another molecule.
Since intramolecular hydrogen bonds are weaker than intermolecular hydrogen bonds, o-nitrophenol is less steam volatile than p-nitrophenol.
APPEARS IN
संबंधित प्रश्न
Write the main products when
2, 4, 6-trinitrochlorobenzene is subjected to hydrolysis
While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.
Give the equation of the following reaction:
Bromine in CS2 with phenol.
Explain the following with an example.
Kolbe’s reaction.
When phenol is treated with excess bromine water, it gives:
In the reaction of phenol with CHCl3 and aqueous NaOH at 343 K, the electrophile attacking the ring is:
Which of the following species can act as the strongest base?
Which of the following compounds is aromatic alcohol?
| (A) |  |
| (B) |  |
| (C) |  |
| (D) |  |
For the pair phenol and cyclohexanol, answer the following:
Give one chemical test to distinguish between the two.
