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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Choose the most correct option. Which of the following compounds will dissolve in aqueous NaOH after undergoing reaction with Hinsberg reagent?

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प्रश्न

Choose the most correct option.

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

पर्याय

  • Ethylamine

  • Triethylamine

  • Trimethylamine

  • Diethylamine

MCQ
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उत्तर

Ethylamine

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पाठ 13: Amines - Exercises [पृष्ठ २९६]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 13 Amines
Exercises | Q 1.08 | पृष्ठ २९६

संबंधित प्रश्‍न

Write a short note on Hoffmann bromamide degradation.


How do you convert the following: C6H5CONH2 to C6H5NH2


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


Write a short note on the following:

Hoffmann’s bromamide reaction


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

\[\ce{CH3CH2Br ->[KCN] A ->[LiAlH4] B ->[HNO2][0^\circ C] C}\]


Why cannot aromatic primary amines be prepared by Gabriel phthalimide synthesis?


Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol.


Mention 'two' uses of propan-2-one.


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


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


 Write structures of compounds A and B in each of the following reactions:


Answer in one sentence.

Predict the product of the following reaction.

\[\ce{Nitrobenzene ->[Sn/conc.HCl]?}\]


Answer the following

Explain Gabriel phthalimide synthesis.


The following amines is the product of Gabriel phthalimide synthesis.


Mendius reaction is used to convert _____________


Write reactions to bring about the following conversions.

Acetamide to Ethylamine


Explain Hoffmann’s exhaustive alkylation with suitable reactions.


Explain the following reaction with a suitable example.

Hofmann elimination reaction


Identify compound 'B' in following series of reactions?

\[\ce{Acetonitrile ->[Na/alcohol] A ->[NaNO2/dil.HCI] B}\]


Identify the product 'A' in the following reaction.

\[\ce{Aniline ->[(CH3CO)2O][Pyridine] A}\]


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


Identify the product obtained, when benzamide is treated with bromine and aqueous sodium hydroxide.


Which of the following amines exhibits maximum degree of intermolecular hydrogen bonding?


Identify the major product (B).


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

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


Identify the INCORRECT statement regarding Hofmann bromamide reaction.


Which of the following reagents is used in Mendius reduction reaction of alkyl cyanide?


Which of the following does NOT give carbylamine test?


Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?


The best reagent for converting 2–phenylpropanamide into 2-phenylpropanamine is ______.


The best reagent for converting, 2-phenylpropanamide into 1- phenylethanamine is ______.


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

(i) Isobutyl amine

(ii) 2-Phenylethylamine

(iii) N-methylbenzylamine

(iv) Aniline


Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?

(i) Acetyl chloride/pyridine followed by reaction with conc.\[\ce{H2SO4 }\] + conc. \[\ce{HNO3}\].

(ii) Acetic anyhdride/pyridine followed by conc.\[\ce{H2SO4}\] + conc.\[\ce{HNO3}\].

(iii) Dil. HCl followed by reaction with conc.\[\ce{H2SO4}\] + conc.\[\ce{HNO3}\].

(iv) Reaction with conc.\[\ce{HNO3}\] + conc.\[\ce{H2 SO4}\].


What is the best reagent to convert nitrile to primary amine?


Write following conversions:

nitrobenzene `->` acetanilide


How will you carry out the following conversion?


How will you carry out the following conversions?


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

Reason: Primary amines are more basic than secondary amines.


Account for the following:

Aniline cannot be prepared by the ammonolysis of chlorobenzene under normal conditions.


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


Reduction of nitro alkanes yields which compound?


Acetamide and ethyl amide can be distinguished by reacting with.


When primary amines are treated with HCl, the product obtained is which of the following?


  1. Phenyl methenamine
  2. N, N - Dimethylaniline
  3. N - Methyl aniline
  4. Benzenamine

Choose the correct order of the basic nature of the above amines.


Identify the product ‘C’ in the following reaction.

\[\ce{Aniline ->[(CH3CH)2O][Pyridine] A ->[Br2][CH3COOH] B ->[H^+ or OH^-] C}\]


Write a short note on the following:

Ammonolysis


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


Write a short note on Ammonolysis.


Write short note on the following.

Ammonolysis.


Write a short note on the following:

Ammonolysis.


Write short notes on the following:

Ammonolysis 


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