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Karnataka Board PUCPUC Science 2nd PUC Class 12

Identify A and B in the following reaction.

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Question

Identify A and B in the following reaction.

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Solution

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Chapter 13: Amines - Multiple Choice Questions (Type - I) [Page 190]

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NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 13 Amines
Multiple Choice Questions (Type - I) | Q 58 | Page 190

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


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

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


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Arrange the following in the increasing order of their pKvalues:

C6H5NH2, C2H5NH2, C6H5NHCH3


The following amines is the product of Gabriel phthalimide synthesis.


Write reactions to bring about the following conversions.

Acetamide to methylamine


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


Amongst the following, the strongest base in aqueous medium is ______.


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\[\ce{C6H5CH2NH2 + R - X -> C6H5CH2NHR}\]

Which of the following alkylhalides is best suited for this reaction through SN1 mechanism?


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  Column I   Column II
(i) Ammonolysis (a) Amine with lesser number of carbon atoms
(ii) Gabriel phthalimide synthesis (b) Detection test for primary amines.
(iii) Hoffmann Bromamide reaction (c) Reaction of phthalimide with \[\ce{KOH}\] and \[\ce{R-X}\]
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Account for the following:

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


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  3. N - Methyl aniline
  4. Benzenamine

Choose the correct order of the basic nature of the above amines.


Write a short note on Ammonolysis.


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