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Benzenediazonium chloride on reaction wi...

Benzenediazonium chloride on reaction with phenol in weakly basic medium gives

A

Diphenyl ether

B

p-hydroxyazobenzene

C

Chlorobenzene

D

Benzene

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Benzene diazonium chloride on reaction with phenol in weakly basic medium gives

Diazonium salt formation and coupling reaction: When a reaction mixture of phenyl amine and nitrous acid is kept below 10^(@)C , a diazonium salt is formed. This reaction is called diazotization reaction. The diazonium ion, -N_(2)^(+) , is rather unstable and decomposes readily to nitrogen. However, delocalization of the diazonium from pi- bond electron over a benzene ring phenyl diazonium sufficiently for it to form at low temperature. The phenyl diazonium ion behaves as an electrophile, and will attack another arene molecule such as phenol. Electrophilic subsitiution takes at the 4 position, producing 4-hydroxy phenyl azobenzene. The reaction is known as coupling reaction. The compound formed is an energetically stable, yellow azo dye (the azo group is -N=N- ) The stability is due to extensive delocalisation of electrons via the nitrogen- nitrogen double bonds. Benzene diazonium chloride on reaction with phenol in weakly basic medium gives :

Benzenediazonium chloride on reaction with aniline in weakly basic medium gives

Benzene diazonium chloride on reaction with phenol in a basic medium gives:

Benzenediazonium chloride on reaction with water gives

What happens when benzene diazonium chloride reacts with phenol in weak alkaline medium ? (Give balanced equation)

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives :

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives :

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives :

Benzenediazonium chloride is reduced to benzene by

ALLEN-ALKENE, ALKANE & ALKYNE -EXERCISE-5[B]
  1. The order of reactivity of the following alcohols towards conc. HCI is

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  2. Among the following compounds, the strongest acid is :

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  3. Benzenediazonium chloride on reaction with phenol in weakly basic medi...

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  4. The ether

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  5. Which one of the following will most readily be dehydrated in acidic c...

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  6. 1-propanol and 2-propanol can be best distinguished by :

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  7. Identify the correct order of boiling points of the following compound...

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  8. Product is

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  9. An enantiomerically pure acid is treated with racemic mixture of an al...

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  10. Ethyl ester overset(MeMgBr) underset(excess)rarr P. The product P will...

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  11. 2 - Phenylpropene on acidic hydration , gives -

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  12. Conversion of cyclohexanol into cyclohexene is most effective in:

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  13. When t-butanol and n-butanol are separately treated with a few drops o...

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  14. 3,3-dimethylbutan-2-ol losses a molecule of water in the presence of c...

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  15. A compund X(C8H10O) upon treatment with alkaline solution of iodine gi...

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  16. Which of the following is the correct method to synthesise methyl-t-by...

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  17. overset("Conc". H(2)SO(4))rarr(A)

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  18. Write the intermediate steps for the following reactio.

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  19. Explain why o-hydroxy benzaldehyde is a liquid at room temperature whi...

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  20. Write the structure of the product A & B C(2)H(5)-underset(O)underse...

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