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

Accomplish the following conversion:

Benzyl chloride to 2-phenylethanamine


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


Choose the most correct option.

Which of the following compounds will dissolve in aqueous NaOH after undergoing reaction with Hinsberg reagent?


Write the order of reactivity of alkyl halides with ammonia.


Identify the product 'A' in the following reaction.

\[\ce{Aniline ->[(CH3CO)2O][Pyridine] A}\]


Identify the major product (B).


The reduction of alkyl cyanide with sodium and ethanol to give primary amines is, ____________.


Nitro compounds are reduced by iron scrap and hydrochloric acid to yield one of the following compounds:


Reduction of aromatic nitro compounds using \[\ce{Fe}\] and \[\ce{HCl}\] gives ______.


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


How will you bring out the following conversion?


How will you carry out the following conversion?


Match the reactions given in Column I with the statements given in Column II.

  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 \[\ce{R-X}\]
(iv) Carbylamine reaction (d) Reaction of alkylhalides with \[\ce{NH3}\]

Assertion: Aromatic 1° amines can be prepared by Gabriel Phthalimide Synthesis.

Reason: Aryl halides undergo nucleophilic substitution with anion formed by phthalimide.


The compound X is which of the following?

\[\ce{CH3CN ->[Na + C2H5OH] x}\]


Reduction of nitro alkanes yields which compound?


Identify the product ‘C’ in the following reaction.

\[\ce{Aniline ->[(CH3CH)2O][Pyridine] A ->[Br2][CH3COOH] B ->[H^+ or OH^-] C}\]


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


Assertion: Amimonolysis of alkyl halides involves the reaction between alkyl halides and alcoholic ammonia.

Reason: Ammonolysis of alkyl halides produces secondary amines only.


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