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:


An aromatic compound 'A' of molecular formula C7H7ON undergoes a series of reactions as shown below. Write the structures of A, B, C, D and E in the following reactions :


Accomplish the following conversion:

Benzyl chloride to 2-phenylethanamine


Choose the most correct option.

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


The following amines is the product of Gabriel phthalimide synthesis.


Write the order of reactivity of alkyl halides with ammonia.


Write reactions to bring about the following conversions.

Acetamide to Ethylamine


Write reactions to bring about the following conversions.

Acetamide to methylamine


Alkyl cyanides on reduction by sodium and ethanol give primary amines. This reaction is called as ____________.


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


\[\ce{CH3-CN ->[Na/C2H5OH]}\]

The product formed is ____________.


Identify product B in the following reaction.

\[\ce{Aniline ->[NaNO2][HCl] A ->[KI] B}\]


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


Which of the following amines can be prepared by Gabriel synthesis.

(i) Isobutyl amine

(ii) 2-Phenylethylamine

(iii) N-methylbenzylamine

(iv) Aniline


What is the product when \[\ce{C6H5CH2NH2}\] reacts with \[\ce{HNO2}\]?


How will you carry out the following conversion?


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


Identify A and B in the following reaction.

\[\ce{C6H5CH2Br ->[Alco.][KCN] A ->[Na/Ethanol][reduction] B}\]


Write a short note on the following:

Ammonolysis


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


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