p-Nitrobromobenzene can be converted to p-nitroaniline by using NaNH₂.The reaction proceeds through the intermediate named
Options
(a) carbocation (b) carbanion (c) benzyne (d) dianion
Correct Answer:
benzyne
Explanation:
No explanation available. Be the […]
Acetylation of a secondary amine in alkaline medium yields
Options
(a) N,N-dialkyl acetamide (b) N,N-dialkyl amine (c) N,N-dialkyl amide (d) Acetyl dialkyl amine
Correct Answer:
N,N-dialkyl acetamide
Explanation:
No explanation available. Be the […]
Secondary amines could be prepared by
Options
(a) reduction of nitriles (b) Hoffmann bromamide reaction (c) reduction of amides (d) reduction of isonitriles
Correct Answer:
reduction of isonitriles
Explanation:
No explanation available. Be […]
The most basic amine among the following is
Options
(a) p-toluidine (b) o-nitroaniline (c) p-nitroaniline (d) 2,4-dinitroaniline
Correct Answer:
p-toluidine
Explanation:
Basicity of amines increases with the presence of electron releasing groups and decreases […]
An orange dye, p-hydroxyazobenzene can be synthesized from benzene diazonium chloride by
Options
(a) Sandmeyar reaction (b) Gomberg reaction (c) Coupling reaction (d) Gattermann reaction
Correct Answer:
Coupling reaction
Explanation:
No explanation available. […]
Benzenediazonium chloride on treated with water gives
Options
(a) phenol (b) 0-chlorophenol (c) anisole (d) chlorobenzene
Correct Answer:
phenol
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Nitrobenzene is reduced to azoxybenzene using
Options
(a) Sn/HCl (b) Zn/NH₄Cl (c) As₂O₃/NaOH (d) Zn/NaOH
Correct Answer:
As₂O₃/NaOH
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Which of the following exists as zwitter ion
Options
(a) p-Aminophenol (b) Sulphanilic acid (c) Salicylic acid (d) Ethanolamine
Correct Answer:
Sulphanilic acid
Explanation:
No explanation available. Be the first to write the […]
Nitration of aniline is achieved by
Options
(a) direct treatment with nitration mixture under reflux (b) using fuming HNO₃ (c) acetylation followed by nitration and subsequent hydrolysis (d) KNO₃ + conc.HNO₃
Correct Answer: […]
If diazotisation of aniline is carried out at 30⁰ C,the main organic product formed is
Options
(a) phenol (b) phenyl isocyanide (c) diphenyl amine (d) phenyl hydrazine
Correct Answer:
phenol
Explanation:
No explanation […]
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