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

Reduction of nitrobenzene by which of the following reagent gives aniline? (i) Sn/HCl (ii) Fe/HCl (iii) HX2−Pd (iv) Sn/NHX4OH

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प्रश्न

Reduction of nitrobenzene by which of the following reagent gives aniline?

(i) \[\ce{Sn/HCl}\]

(ii) \[\ce{Fe/HCl}\]

(iii) \[\ce{H2 - Pd}\]

(iv) \[\ce{Sn/NH4OH}\]

टीपा लिहा
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उत्तर

(i) \[\ce{Sn/HCl}\]

(ii) \[\ce{Fe/HCl}\]

(iii) \[\ce{H2 - Pd}\]

Explanation:

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पाठ 13: Amines - Multiple Choice Questions (Type - I) [पृष्ठ १८६]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 13 Amines
Multiple Choice Questions (Type - I) | Q 29 | पृष्ठ १८६

संबंधित प्रश्‍न

Write the chemical equation involved in the following reaction:

Hoffmann-bromamide degradation reaction


How do you convert the following: Ethanenitrile to ethanamine


Accomplish the following conversion:

Benzamide to toluene


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

\[\ce{CH3CH2Br ->[KCN] A ->[LiAlH4] B ->[HNO2][0^\circ C] C}\]


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


Answer in one sentence.

Predict the product of the following reaction.

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


The best reagent for converting 2–phenylpropanamide into 2-phenylpropanamine is ______.


Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is ______.


Identify A and B in the following reaction.


Write following conversions:

acetanilide `->` p-nitroaniline


Which of the following compound is expected to be most basic?


Methyl amine on reaction with chloroform in the presence of NaOH gives ______.


  1. Phenyl methenamine
  2. N, N - Dimethylaniline
  3. N - Methyl aniline
  4. Benzenamine

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


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


Which of the following statement(s) is/are incorrect in case of Hofmann bromamide degradation?


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


Write short note on the following:

Ammonolysis


Identify the compo ds A and B in the following reactions:

\[\ce{A ->[Nitrating mixture] B ->[(i) Sn/cone. HCI][(ii) NaOH] Aniline}\]


Write short note on the following:

Ammonolysis


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