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

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

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प्रश्न

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

पर्याय

  • excess \[\ce{H2}\]

  • \[\ce{Br2}\] in aqueous \[\ce{NaOH}\]

  • iodine in the presence of red phosphorus

  • \[\ce{LiAlH4}\] in ether

MCQ
रिकाम्या जागा भरा
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उत्तर

The best reagent for converting 2–phenylpropanamide into 2-phenylpropanamine is \[\ce{LiAlH4}\] in ether.

Explanation:

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पाठ 13: Amines - Multiple Choice Questions (Type - I) [पृष्ठ १८२]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 13 Amines
Multiple Choice Questions (Type - I) | Q 10 | पृष्ठ १८२

संबंधित प्रश्‍न

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


Accomplish the following conversion:

Nitrobenzene to benzoic acid


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

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


Give a plausible explanation for the following:

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


Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol.


 Write structures of compounds A and B in each of the following reactions:


Write reactions for the preparation of ethanamine using Gabriel phthalimide synthesis.


Acetamide on reduction using Na/C2H5OH gives ____________.


The end product C of the following reaction is

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


Identify the major product (B).


The best reagent for converting, 2-phenylpropanamide into 1- phenylethanamine is ______.


Which of the following reactions are correct?

(i)

(ii)

(iii)

(iv)


Write following conversions:

nitrobenzene `->` acetanilide


Assertion: Only a small amount of \[\ce{HCl}\] is required in the reduction of nitro compounds with iron scrap and \[\ce{HCl}\] in the presence of steam.

Reason: \[\ce{FeCl2}\] formed gets hydrolysed to release \[\ce{HCl}\] during the reaction.


Acetamide and ethyl amide can be distinguished by reacting with.


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.


Write short note on the following:

Ammonolysis


Write short note on the following:

Ammonolysis


Write a short note on the following:

Ammonolysis


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