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

Give the structure of A, B and C in the following reaction: {C6H5NO2 ->[Fe/HCl] A ->[NaNO2 + HCl][273 K] B ->[H2O/H+][\Delta] C}

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प्रश्न

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

\[\ce{C6H5NO2 ->[Fe/HCl] A ->[NaNO2 + HCl][273 K] B ->[H2O/H+][\Delta] C}\]

रासायनिक समीकरण/संरचनाएँ
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उत्तर

\[\ce{\underset{Nitrobenzene}{C6H5NO2} ->[Fe/HCl] \underset{(A)}{\underset{Aniline}{C6H5NH2}} ->[NaNO2 + HCl][273 K] \underset{(B)}{\underset{chloride}{\underset{Benzenediazonium}{C6H5\overset{+}{N}≡NCl-}}} ->[H2O/H+][\Delta] \underset{(C)}{\underset{Phenol}{C6H5OH}}}\]

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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 (iv) | पृष्ठ २७९

संबंधित प्रश्न

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

\[\ce{CH3CH2I ->[NaCN] A ->[OH-][Partial hydrolysis] B ->[NaOH + Br2] C}\]


Identify 'A' and 'B' in the following reaction and rewrite the complete reaction :


Arrange the following in the increasing order of their pKb values:

C6H5NH2, C2H5NH2, C6H5NHCH3


Write the order of reactivity of alkyl halides with ammonia.


Write reactions to bring about the following conversions.

Acetamide to Ethylamine


Identify the product obtained when benzyl chloride undergoes ammonolysis in presence of excess ammonia followed by the reaction with two moles of methyl iodide.


Nitro compounds are reduced by iron scrap and hydrochloric acid to yield one of the following compounds:


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


Which of the following compounds is the weakest Brönsted base?


Which of the following methods of preparation of amines will give same number of carbon atoms in the chain of amines as in the reactant?


A primary amine is formed by an amide on treatment with bromine and alkali. The primary amine has


Reduction of nitro alkanes yields which compound?


In the given reaction what is the X?

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


Which of the following compound gives pink colour on reaction with phthalic anhydride in cone. H2SO4 followed by treatment with NaOH?


The amine 'A' when treated with nitrous acid gives yellow oily substance. The amine A is ______.


What is the IUPAC name of \[\ce{(CH3)2 - N - CH3}\]?


Write the name of the product formed by the action of LiAlH4/ether on acetamide.


Identify A and B in the following reaction.

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


Assertion: Amimonolysis of alkyl halides involves the reaction between alkyl halides and alcoholic ammonia.

Reason: Ammonolysis of alkyl halides produces secondary amines only.


Write a short note on the following:

Ammonolysis.


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