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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Give the structures of A, B and C in the following reaction. {C6H5NO2 ->[Fe/HCl] A ->[HNO2][273 K] B ->[C6H5OH] C}

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प्रश्न

Give the structures of A, B and C in the following reaction:

\[\ce{C6H5NO2 ->[Fe/HCl] A ->[HNO2][273 K] B ->[C6H5OH] C}\]

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उत्तर

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अध्याय 9: Amines - Exercises [पृष्ठ २७९]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
अध्याय 9 Amines
Exercises | Q 9.9 (vi) | पृष्ठ २७९

संबंधित प्रश्न

Write a short note on Hoffmann bromamide degradation.


Write a short note on the following:

Hoffmann’s bromamide reaction


Why cannot aromatic primary amines be prepared by Gabriel phthalimide synthesis?


Answer in one sentence.

Predict the product of the following reaction.

\[\ce{Nitrobenzene ->[Sn/conc.HCl]?}\]


Write reactions to bring about the following conversions.

Acetamide to Ethylamine


Which of the following amines exhibits maximum degree of intermolecular hydrogen bonding?


Which of the following amines forms a clear solution when treated with benzene sulphonyl chloride and excess of potassium hydroxide?


Identify 'A' and 'B' in the following conversions.

\[\ce{CH3 - I ->[Alc. KCN][\Delta] A ->[Na/C2H5OH] B}\]


Which of the following compounds is obtained when quaternary ammonium hydroxide is strongly heated?


Which of the following reactions does NOT yield an amine?


The source of nitrogen in Gabriel synthesis of amines is ______.


Amongst the given set of reactants, the most appropriate for preparing 2° amine is ______.


Suggest a route by which the following conversion can be accomplished.


Identify A and B in the following reaction.


Write following conversions:

nitrobenzene `->` acetanilide


Assertion: Only a small amount of \[\ce{HCl}\] is required in the reduction of nitro compounds with iron scrap and \[\ce{HCl}\] in the presence of steam.

Reason: \[\ce{FeCl2}\] formed gets hydrolysed to release \[\ce{HCl}\] during the reaction.


Account for the following:

Aniline cannot be prepared by the ammonolysis of chlorobenzene under normal conditions.


In the given reaction what is the X?

\[\begin{array}{cc}
\ce{O}\phantom{.......................}\\
||\phantom{.......................}\\
\phantom{}\ce{R - C - OH <-[H3O] Χ ->[H] RCH2NH2}
\end{array}\]


Identify A and B in the following reaction.

\[\ce{C6H5CH2Br ->[Alco.][KCN] A ->[Na/Ethanol][reduction] B}\]


Write a short note on Ammonolysis.


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