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

Assertion: Hoffmann’s bromamide reaction is given by primary amines. Reason: Primary amines are more basic than secondary amines. - Chemistry

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प्रश्न

Assertion: Hoffmann’s bromamide reaction is given by primary amines.

Reason: Primary amines are more basic than secondary amines.

पर्याय

  • Both assertion and reason are wrong.

  • Both assertion and reason are correct statements but reason is not correct explanation of assertion.

  • Assertion is correct statement but reason is wrong statement.

  • Both assertion and reason are correct statements and reason is correct explanation of assertion.

  • Assertion is wrong statement but reason is correct statement.

MCQ
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उत्तर

Assertion is correct statement but reason is wrong statement.

Explanation:

Hofmann’s bromamide reaction is given by amides, not by amines. Moreover, primary amines are basic than secondary amines.

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पाठ 13: Amines - Multiple Choice Questions (Type - I) [पृष्ठ १९२]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 13 Amines
Multiple Choice Questions (Type - I) | Q 69 | पृष्ठ १९२

संबंधित प्रश्‍न

Identify the compounds 'A' and 'B' in the following equation:


How do you convert the following: Ethanenitrile to ethanamine


Write a short note on the following:

Hoffmann’s bromamide reaction


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

\[\ce{C6H5NO2 ->[Fe/HCl] A ->[HNO2][273 K] B ->[C6H5OH] C}\]


Identify 'A' and 'B' in the following reaction and rewrite the complete reaction :


Answer the following

Identify A and B in the following reactions.

\[\ce{C6H5CH2Br->[alco.][KCN]A ->[Na/ethanol]B.}\]


Identify the product obtained when benzyl chloride undergoes ammonolysis in presence of excess ammonia followed by the reaction with two moles of methyl iodide.


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


Quaternary ammonium salt is formed:


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


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


Suggest a route by which the following conversion can be accomplished.


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 \[\ce{NH3}\]

A primary amine is formed by an amide on treatment with bromine and alkali. The primary amine has


The compound X is which of the following?

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


Which of the following CANNOT be prepared by ammonolysis of alkyl halide?


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


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.


Write the name of reduction product formed when ethyl cyanide is treated with sodium and alcohol.


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