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

Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?

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प्रश्न

Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?

पर्याय

  • \[\ce{H2 (excess)/Pt}\]

  • \[\ce{LiAlH4}\] in ether

  • \[\ce{Fe}\] and \[\ce{HCl}\]

  • \[\ce{Sn}\] and \[\ce{HCl}\]

MCQ
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उत्तर

\[\ce{LiAlH4}\] in ether

Explanation:

Lithium aluminium hydride in either is a strong reducing agent that donated its \[\ce{H-}\] hydride ion to any \[\ce{C = O}\] containing a functional group. In addition to \[\ce{LiAlH}\], to aryl nitro compounds, no reaction will be observed, the desired products of amines will not be produced, rather it will form diazobenzene products.

\[\ce{2C4H5NO ->[LiAlH4/ether] C6H5N = N - C6H5}\]

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पाठ 13: Amines - Multiple Choice Questions (Type - I) [पृष्ठ १८१]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 13 Amines
Multiple Choice Questions (Type - I) | Q 6 | पृष्ठ १८१

संबंधित प्रश्‍न

How are propan-1-amine and propan-2-amine prepared from oxime?


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

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


Identify the major product (B).


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


Identify the INCORRECT statement regarding Hofmann bromamide reaction.


Identify product B in the following reaction.

\[\ce{Aniline ->[NaNO2][HCl] A ->[KI] B}\]


Which of the following reagents is used in Hofmann's elimination reaction of amines?


Which of the following does NOT give carbylamine test?


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 ______.


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

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

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

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

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


How will you carry out the following conversions?


Which of the following reactions will not give a primary amine?


Reduction of nitro alkanes yields which compound?


When primary amines are treated with HCl, the product obtained is which of the following?


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


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


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 Ammonolysis.


Write a short note on the following:

Ammonolysis


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