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Reaction of phenol with chloroform//sodi...

Reaction of phenol with chloroform//sodium hydroxide to give `o-`hydroxy benzaldehyde onvolves the formation of

A

Chlorine molecules

B

Trichloro carbene

C

Chlorine atoms

D

Dichloro carbene

Text Solution

Verified by Experts

The correct Answer is:
D
This is Remain-Tiemann reaction where the electronphile is dichlorocarbene (`: C CI_(2))` generated from chloroform by the action of a base.
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A2Z-ALCOHOLS, PHENOLS AND ETHERS-Phenols
  1. Which of the following is most acidic?

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  2. Which of the following will not react with NaOH?

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  3. Reaction of phenol with chloroform//sodium hydroxide to give o-hydroxy...

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  4. The electrophile involved in the above reaction is:

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  5. Phenol when it first reacts with concentrated sulphuric acid and then ...

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  6. Bakelite is obtained form phenol by reacting with:

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  7. Arrange the following compounds in the order of decreasing acidity. ...

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  8. Ortho -nitrophenol is less soluble in water than p-and m-nitrophenols ...

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  9. Phenol is heated with a solution of mixture of KBr and KBrO(3). The ma...

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

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  11. When phenol in treated with excess bromine water, it gives

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  12. When phenol reactes with CHCl(3) and NaOH followed by acidification, ...

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  13. Benzene diazonium chloride on reaction with phenol in a basic medium g...

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  14. Text Solution

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  15. When benzene sulphonic acid and p-nitrophenol are treated with NaHCO3,...

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  16. The major product (s) of the following reaction is (are) P Q ...

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  17. The reactivity of compound Z with different hologebs under apppropriat...

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  18. The strongest acid among the following aromatic compounds is

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  19. In the Liebermann's nitroso reaction, sequential changes in the colour...

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  20. Complete the following reaction

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