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A compound (X) has the molecular formula...

A compound (X) has the molecular formula ` C_7 H_7O` . On treatment with ` Br_2` and ` KOH`. (X) gives an amine (Y) , (Y) gives carbylamine lest . (Y) upon diazotisation and couupling with phenol gives an azodye (Z ) .(X) is :

A

`PhCONH_2`

B

`PhCONHCOCH_3`

C

`PhNO_2`

D

`PhCOONH_4`

Text Solution

Verified by Experts

The correct Answer is:
A
Reaction of (X ) with ` Br_2 + KOH` suggests theat (X ) is an amide . Carbulamine test and cou,oing reaction fo (Y) suggest that (Y) is `1^@` aromatic amine .
.
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CENGAGE CHEMISTRY-ORGANIC COMPOUNDS WITH FUNCTIONAL GROUP-Exercises Single Correct
  1. Which of the following is the weakest base ?

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

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  3. Primary and secondary amines are distinguished by :

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  4. Indicate which nitrogen compound amonfst the following would undergo H...

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  5. Pick up the correct stament :

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  6. The producet of the reaction of alcoholic silver nitrite with ethyl br...

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  7. The electrolytic reduction of nitrobenzene in strongly acidic medium p...

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  8. Azoxybenzene can be obtained by the treatment of mitro-benzene with :

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  9. Tertiary nitro compounds cannot show tautomerism becauses :

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  10. Diazo coupling is useful to prepare some :

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  11. The following reaction constituts : RNH2 + S=C=S underset (H2S) over...

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  12. Primary , secondary , tertiary amines can be separated by the followin...

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  13. 1^@.2^@. And 3^@ amines can be best distinguished by :

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  14. When C6 H5N2Cl is reduced with Na 2 SnOO2, the product is :

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  15. Nitrogen is likely to be evolved when NaNO2 in dilute HCl warmed with...

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  16. When PhNO2 is reduced in alkaline medium , the product is

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  17. The following reaction is .

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  18. A compound (X) has the molecular formula C7 H7O . On treatment with ...

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  19. A compound (X) has the molecular formula C3 H7 NO . With Br2 and KO...

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  20. An amine on treatment with HNO2 evolved N2 The amine on exhaustive me...

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