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

Identify A and B in the following reaction.

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प्रश्न

Identify A and B in the following reaction.

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उत्तर

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अध्याय 13: Amines - Multiple Choice Questions (Type - I) [पृष्ठ १९०]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 13 Amines
Multiple Choice Questions (Type - I) | Q 58 | पृष्ठ १९०

संबंधित प्रश्न

Write the chemical equation involved in the following reaction:

Hoffmann-bromamide degradation reaction


Accomplish the following conversion:

Benzamide to toluene


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

\[\ce{CH3COOH ->[NH3][\Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\]


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


Write the reaction of aromatic primary amine with nitrous acid.


Give a plausible explanation for the following:

Why are amines less acidic than alcohols of comparable molecular masses?


Arrange the following in the increasing order of their pKvalues:

C6H5NH2, C2H5NH2, C6H5NHCH3


Write reactions to prepare ethanamine from Acetonitrile.


Name the process of breaking C-X bond by ammonia in preparation of amines.


Identify the product 'A' in the following reaction.

\[\ce{Aniline ->[(CH3CO)2O][Pyridine] A}\]


The end product C of the following reaction is

\[\ce{C2H5NH2 ->[HNO2] A ->[PCl5] B ->[NH3][Alcohol] C}\]


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


Which of the following does NOT give carbylamine test?


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


Which of the following compounds is the weakest Brönsted base?


Give reasons for the following:

Ammonolysis of alkyl halides is not a good method to prepare pure primary amines.


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


Which of the following amines can be prepared by Gabriel phthalimide reaction?


Identify the product ‘C’ in the following reaction.

\[\ce{Aniline ->[(CH3CH)2O][Pyridine] A ->[Br2][CH3COOH] B ->[H^+ or OH^-] C}\]


Write a short note on the following:

Ammonolysis.


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