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प्रश्न
Assertion: Hoffmann’s bromamide reaction is given by primary amines.
Reason: Primary amines are more basic than secondary amines.
विकल्प
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.
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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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संबंधित प्रश्न
Give the structures of A, B and C in the following reaction:
\[\ce{CH3COOH ->[NH3][\Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\]
Arrange the following in the increasing order of their pKb values:
C6H5NH2, C2H5NH2, C6H5NHCH3
Answer in one sentence.
Which amide does produce ethanamine by Hofmann bromamide degradation reaction?
Answer the following
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Write reactions for the preparation of ethanamine using Gabriel phthalimide synthesis.
____________ can be prepared exclusively by Gabriel phthalimide synthesis.
What product is formed when \[\ce{R - C ≡ N}\] is hydrolysed?
What is the molar mass of the amine formed when acetamide undergoes Hofmann bromamide degradation?
Identify the INCORRECT statement regarding Hofmann bromamide reaction.
Which of the following amines cannot be prepared by Gabriel phthalimide synthesis?
Which of the following compounds is obtained when quaternary ammonium hydroxide is strongly heated?
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 \[\ce{NH3}\] |
In the given reaction what is the X?
\[\begin{array}{cc}
\ce{O}\phantom{.......................}\\
||\phantom{.......................}\\
\phantom{}\ce{R - C - OH <-[H3O] Χ ->[H] RCH2NH2}
\end{array}\]
Acetamide and ethyl amide can be distinguished by reacting with.
Which of the following CANNOT be prepared by ammonolysis of alkyl halide?
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Write the name of the product formed by the action of LiAlH4/ether on acetamide.
Which of the following would not be a good choice for reducing nitrobenzene to aniline?
Write a short note on the following:
Ammonolysis
