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

Assertion: Only a small amount of HCl is required in the reduction of nitro compounds with iron scrap and HCl in the presence of steam. Reason: FeClX2 formed gets hydrolysed to release HCl during the

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प्रश्न

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.

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

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

Explanation:

\[\ce{Fe + 2HCl ->FeCl2 + 2[H] FeCl2 + H2O(g) -> FeO + 2HCl}\]

The nascent hydrogen formed act as is reducing agent for the reduction of nitro compounds.

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

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 13 Amines
Multiple Choice Questions (Type - I) | Q 72 | पृष्ठ १९२

संबंधित प्रश्‍न

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


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

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


Account for the following:
Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.


Answer the following

Explain Gabriel phthalimide synthesis.


Write the order of reactivity of alkyl halides with ammonia.


Which of the following reactions is appropriate for converting benzamide to aniline?


Quaternary ammonium salt is formed:


Amongst the following, the strongest base in aqueous medium 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?


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


How will you carry out the following conversions?


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?

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


In the given reaction what is the X?

\[\begin{array}{cc}
\ce{O}\phantom{.......................}\\
||\phantom{.......................}\\
\phantom{}\ce{R - C - OH <-[H3O] Χ ->[H] RCH2NH2}
\end{array}\]


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.


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 reduction product formed when ethyl cyanide is treated with sodium and alcohol.


Write short note on the following.

Ammonolysis.


Write a short note on the following:

Ammonolysis


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