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प्रश्न
Why ortho-nitrophenol is steam volatile while para-nitrophenol is not?
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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.
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संबंधित प्रश्न
Write the equation involved in the following reaction:
Kolbe’s reaction
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:
When phenol is heated with CHCl3 and alcoholic KOH when salicylaldehyde is produced. This reaction is known as ____________.
Which of the following are used to convert \[\ce{RCHO}\] into \[\ce{RCH2OH}\]?
(i) \[\ce{H2/Pd}\]
(ii) \[\ce{LiAlH4}\]
(iii) \[\ce{NaBH4}\]
(iv) Reaction with \[\ce{RMgX}\] followed by hydrolysis
Convert the following:
Phenol to N-phenylethanamide.
Which of the following reacts with phenol to give salicylaldehyde after hydrolysis?
Write the chemical equation involved in the following reactions:
Acetylation of salicylic add
Convert the following by giving a chemical equation:
Phenol to salicylaldehyde.
