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प्रश्न
Write a short note on the following.
Gomberg reaction
उत्तर
Benzene diazonium chloride reacts with benzene in the presence of sodium hydroxide to give biphenyl. This reaction is known as the Gomberg reaction.
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संबंधित प्रश्न
Ammonium salt of benzoic acid is heated strongly with P2O5 and the product so formed is reduced and then treated with NaNO2/HCl at low temperature. The final compound formed is ____________.
Identify X in the sequence given below
The major product of the following reaction:
Account for the following.
Diazonium salts of aromatic amines are more stable than those of aliphatic amines.
Identify A, B, C and D.
\[\ce{aniline + benzaldehyde -> A ->[Conc. HNO3][B] C + D}\]
A dibromo derivative (A) on treatment with KCN followed by acid hydrolysis and heating gives a monobasic acid (B) along with the liberation of CO2. (B) on heating with liquid ammonia followed by treating with Br2/KOH gives (C) which on treating with NaNO2 and HCl at low temperature followed by oxidation gives a monobasic acid (D) having molecular mass 74. Identify A to D.
Why is \[\ce{NH2}\] group of aniline acetylated before carrying out nitration?
What would be the major product of the following reaction?
\[\ce{C6H5 - CH2 - OC6H5 + HBr -> A + B}\]
Coupling of benzene diazonium chloride with 1-naphthol in alkaline medium will give:
The major product of the following reaction is:
