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Phenol on being heated with concentrated...

Phenol on being heated with concentrated `H_(2)SO_(4)` and then with concentrated `HNO_(3)` gives

A

`o-` and `p-` nitrophenol

B

`m-` nitrophenol

C

picric acid

D

`o-` nitrophenol

Text Solution

Verified by Experts

The correct Answer is:
C
The sulphonic acid group is oftern readily replaced by a nitro-group. This offers a means of preparing nitro derivatives of compounds that are easily oxidaized by nitric acid, since the sulponic acid derivatives are not easily oxidized. For example, picric acid from phenol. ltbRgt
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R SHARMA-ALCOHOL, PHENOL AND ETHERS-PHENOLS (II)
  1. The reaction is an example of

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  2. Which of the following staments is correct regarding the solubilities ...

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  3. Phenol on being heated with concentrated H(2)SO(4) and then with conce...

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  4. A mixture of benzoic acid and phenol may be separated by treatment wit...

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  5. Phenol can be converted into salicylic acid by heating with

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  6. The major product obtanined on interaction of phenol with sodium hydr...

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  7. Which of the following does not liberate CO(2) from NaHCO(3).

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  8. When phenol is heated with CHCl(3) and alcoholic KOH, salicylaldehyde ...

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  9. Increasing order of acidic strength among p-methoxyphenol (i)p-methylp...

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  10. The boiling point of p-nitrophenol is higher than that of o-nitropheno...

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  11. Isopropylbenzene on air oxidation in the presence of dilute acid gives

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  12. Phenol can be distinguished from ethanol by the following reagents exc...

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  13. The compound used to manufacture phenol is

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  14. Salicylic acid is prepared from phenol by

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  15. Picric acid is

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  16. Na reacts with phenol to produce

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  17. Zinc powder+PhOHrarrX In the above reaction the product X will be

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  18. Which of the following statements is correct?

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  19. Electophilic substitution in phenol generally occurs at

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  20. In order to get Bakelite from phenol which of the following reagents i...

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