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

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उत्तर

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

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

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

Explanation:

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

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

संबंधित प्रश्न

Write a short note on Hoffmann bromamide degradation.


Accomplish the following conversion:

Nitrobenzene to benzoic acid


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


Write the reaction of aromatic primary amine with nitrous acid.


Mention 'two' uses of propan-2-one.


Write reactions to prepare ethanamine from Acetonitrile.


The following amines is the product of Gabriel phthalimide synthesis.


Which of the following reactions is appropriate for converting benzamide to aniline?


Identify the product obtained when benzamide is treated with bromine and aqueous sodium hydroxide?


For producing amines, the reaction of nitro compounds with iron scrap is preferred because:


Benzylamine may be alkylated as shown in the following equation:

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

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


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


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?


The reagents that can be used to convert benzenediazonium chloride to benzene are:

(i) \[\ce{SnCl2/HCl}\]

(ii) \[\ce{CH3CH2OH}\]

(iii) \[\ce{H3PO2}\]

(iv) \[\ce{LiAlH4}\]


Write following conversions:

acetanilide `->` p-nitroaniline


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 a short note on the following:

Ammonolysis


Write short note on the following:

Ammonolysis


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