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Among the following phenols which is mo...

Among the following phenols which is most acidic?

A

Picric acid

B

`2-` Nitrophenol

C

`2,4-` Dinitrophenol

D

`m-` Nitrophenol

Text Solution

Verified by Experts

The correct Answer is:
A
Picric acid `(2,4,6-"trinitrophenol")` is a very strong acid on account of the cumulative effect of three electron withdrawing nitro-groups in the `2,4,6-`position.
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R SHARMA-ALCOHOL, PHENOL AND ETHERS-PHENOLS (II)
  1. When phenol is heated with CHCl(3) and alcoholic KOH, salicylaldehyde ...

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

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

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

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

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  6. The compound used to manufacture phenol is

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  7. Salicylic acid is prepared from phenol by

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  8. Picric acid is

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  9. Na reacts with phenol to produce

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

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  11. Which of the following statements is correct?

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  12. Electophilic substitution in phenol generally occurs at

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

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  14. Which of the following groups will increasing the acidity of phenol?

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  15. Among the following phenols which is most acidic?

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  16. Salicyladehyde can be prepard form

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  17. Phenol is heated with C Cl(4) and alkaline KOH when salicylic acid is ...

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  18. Phenol on treatment with conc. HNO(3) gives

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  19. C(6)H(5)Ohoverset(CH(3)COCl)underset(NaOH(aq))(rarr)C(6)H(5)OCOCH(3) ...

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  20. When phenol is treated with excess of bromine water, it gives

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