What is formed when nitrobenzene is reduced using zinc and alkali
Options
(a) Phenol (b) Hydrazobenzene (c) Aniline (d) Nitrosobenzene
Correct Answer:
Hydrazobenzene
Explanation:
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The number of structural isomers possible from the molecular formula C₃H₉N is
Options
(a) 4 (b) 5 (c) 2 (d) 3
Correct Answer:
4
Explanation:
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Method by which aniline cannot be prepared is
Options
(a) degradation of benzamide with bromine in alkaline solution (b) reduction of nitrobenzene with H₂/Pd in ethanol (c) potassium salt of phthalimide treated with […]
The electrolytic reduction of nitrobenzene in strongly acidic medium produces
Options
(a) Azoxybenzene (b) Azobenzene (c) Aniline (d) p-Aminophenol
Correct Answer:
p-Aminophenol
Explanation:
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Which of the following will be most stable diazonium salt RN₂⁺ X⁻
Options
(a) CH₃N₂⁺ X⁻ (b) C₆H₅N₂⁺ X⁻ (c) CH₃CH₂N₂⁺ X⁻ (d) C₆H₅CH₂N₂⁺ X⁻
Correct Answer:
C₆H₅N₂⁺ X⁻
Explanation:
Aromatic diazonium salts are […]
In the following reaction, the product(A)
Options
(a) (b) (c) (d)
Correct Answer: Explanation:
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An isocyanide on hydrolysis gives
Options
(a) an amide (b) a carboxylic acid and ammonia (c) a N-substituted amide (d) a 1⁰-amine and formic acid
Correct Answer:
a 1⁰-amine and formic acid
Explanation: […]
The reaction of primary amine with chloroform and ethanolic KOH, is called
Options
(a) Reimer-Tiemann reaction (b) Kolbe’s reaction (c) carbylamine reaction (d) none of these
Correct Answer:
carbylamine reaction
Explanation:
No explanation […]
Hofmann bromamide reaction is used to prepare
Options
(a) primary amine (b) secondary amine (c) tertiary amine (d) all the above
Correct Answer:
primary amine
Explanation:
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Reaction of nitrous acid with aliphatic primary amine will give
Options
(a) dye (b) alcohol (c) nitrite (d) diazonium salt
Correct Answer:
alcohol
Explanation:
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