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Azo-dyes are prepared from:...

Azo-dyes are prepared from:

A

Aniline hydrochloride

B

Salicylic acid

C

Benzaldehyde

D

Chlorobenzene

Text Solution

Verified by Experts

The correct Answer is:
A
When aniline is treated and by the coupling of diazonium salt and phenol azo dyes are prepared.
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ERRORLESS -NITROGEN CONTAINING COMPOUNDS -PREPARATION OF NITROGEN CONTAINING COMPOUNDS
  1. CH(3)Cnoverset(Na+C(2)H(2)OH)rarrX The compound X is

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  2. Nitrobenzene combines with hydrogen in the presence of platinum to pro...

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  3. Azo-dyes are prepared from:

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  4. Gabriel phthalimide synthesis is used in the preparation of

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  5. Aniline is usually purified by

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  6. Ethylamine can be obtaine by te

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  7. In acid medium nitrobenzene is reduced to aniline as shown in the reac...

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  8. Which of the following reactions does not yield an amine ?

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  9. CH(3)CONH(2) overset(Na+ROH)to Z+H(2)O,Z is

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  10. In the following reaction, X overset("Bromination")to Y underset(HCl...

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  11. Which of the following will not give a primary amine ?

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  12. Molecular formula of chloropicrin is

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  13. CH(3)NO(2)overset(Sn(+)HCl)rarrCH(3)X, the 'X' contain

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  14. Aniline is prepared in presence of Fe/HCl from

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  15. Which of the following reagents can be used to convert primary amides ...

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  16. The diazonium salts are the reaction products in presence of excess of...

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  17. The end product of the reaction Ethyl amine overset(HNO(2))rarrAover...

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  18. Secondary amines could be prepared by

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  19. The reaction of CHCl(3) and alcohol KOH with p-toluidine gives

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  20. In the series of reaction C(6)H(5)NH(2)underset(0-5^(@)C)overset(NaN...

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