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प्रश्न
Nitration is an example of aromatic electrophilic substitution and its rate depends upon the group already present in the benzene ring. Out of benzene and phenol, which one is more easily nitrated and why?
उत्तर
Phenol is more easily nitrated than benzene as the presence of –OH group in phenol increases the electron density at ortho and para positions in benzene ring by +R effect. The nitration, being an electrophilic substitution reaction is more facile where the electron density is more.
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संबंधित प्रश्न
Write the equation involved in the following reaction:
Kolbe’s reaction
While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.
Name the reagent used in the following reaction:
Bromination of phenol to 2, 4, 6-tribromophenol.
When phenol is heated with CHCl3 and alcoholic KOH when salicylaldehyde is produced. This reaction is known as ____________.
Which of the following reactions is used to prepare salicylaldehyde?
Out of o-nitrophenol and p-nitrophenol, which is more volatile? Explain.
Convert the following:
Phenol to N-phenylethanamide.
Which of the following is not aromatic?
Which of the following reacts with phenol to give salicylaldehyde after hydrolysis?
Why ortho-nitrophenol is steam volatile while para-nitrophenol is not?
