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

Assertion: Aromatic 1° amines can be prepared by Gabriel Phthalimide Synthesis. Reason: Aryl halides undergo nucleophilic substitution with anion formed by phthalimide.

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प्रश्न

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

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

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.

MCQ
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उत्तर

Both assertion and reason are wrong.

Explanation:

Aromatic amines are never obtained by Gabriel phthalimide synthesis.

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

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 13 Amines
Multiple Choice Questions (Type - I) | Q 73 | पृष्ठ १९२

संबंधित प्रश्न

Write the chemical equation involved in the following reaction:

Hoffmann-bromamide degradation reaction


How do you convert the following: C6H5CONH2 to C6H5NH2


Accomplish the following conversion:

Benzamide to toluene


Answer the following

Identify A and B in the following reactions.

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


Write the order of reactivity of alkyl halides with ammonia.


Explain the following reaction with a suitable example.

Hofmann elimination reaction


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


Identify 'A' and 'B' in the following conversions.

\[\ce{CH3 - I ->[Alc. KCN][\Delta] A ->[Na/C2H5OH] B}\]


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


Among the following amines, the strongest Brönsted base is:


Which of the following methods of preparation of amines will give same number of carbon atoms in the chain of amines as in the reactant?


Which of the following reactions are correct?

(i)

(ii)

(iii)

(iv)


Describe Gabriel's phthalimide synthesis. (Give reaction)


Which of the following compound is expected to be most basic?


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


A compound 'A' on reduction with iron scrap and hydrochloric acid gives compound 'B' with molecular formula C6H7N. Compound 'B' on reaction with CHCl3 and alcoholic KOH produces an obnoxious smell of carbylamine due to the formation of 'C'. Identify 'A', 'B' and 'C' and write the chemical reactions involved.


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


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


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

Reason: Ammonolysis of alkyl halides produces secondary amines only.


Write a short note on the following:

Ammonolysis


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