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Give One Chemical Test to Distinguish Between the Following Pairs of Compounds. Aniline and Benzylamine - Chemistry

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प्रश्न

Give one chemical test to distinguish between the following pairs of compounds.

Aniline and benzylamine

उत्तर

Aniline and benzylamine can be distinguished by their reactions with the help of nitrous acid, which is prepared in situ from a mineral acid and sodium nitrite. Benzylamine reacts with nitrous acid to form unstable diazonium salt, which in turn gives alcohol with the evolution of nitrogen gas.

On the other hand, aniline reacts with HNO2 at a low temperature to form stable diazonium salt. Thus, nitrogen gas is not evolved.

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अध्याय 13: Amines - Exercises [पृष्ठ ४००]

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एनसीईआरटी Chemistry [English] Class 12
अध्याय 13 Amines
Exercises | Q 2.4 | पृष्ठ ४००

संबंधित प्रश्न

Which among the following molecular formulae represents urotropine?

(a) C6H12N4

(b) C6H24H4                    

(c) C6H12N4O2

(d) C6H24N4O2


Write the IUPAC name of the following compound and classify it as primary, secondary and tertiary amine.

(CH3CH2)2NCH3


Write the IUPAC name of the following compound and classify it as primary, secondary and tertiary amine.

m−BrC6H4NH2


Give one chemical test to distinguish between the following pair of compounds.

Secondary and tertiary amines


Account for the following:

Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.


How will you convert Ethanoic acid into methanamine


How will you convert Ethanamine into methanamine


How will you convert Propanoic acid into ethanoic acid


Accomplish the following conversions - Benzoic acid to aniline


Accomplish the following conversions - Aniline to 2,4,6-tribromofluorobenzene


Accomplish the following conversions - Aniline to benzyl alcohol.


An aromatic compound ‘A’ on treatment with aqueous ammonia and heating forms compound ‘B’ which on heating with Br2 and KOH forms a compound ‘C’ of molecular formula C6H7N. Write the structures and IUPAC names of compounds A, B and C.


Complete the following reactions:

`C_6H_5N_2Cl +C_2H_5OH->`


Complete the following reactions:

`C_6H_5NH_2 + (CH_3CO)_2O->`


Complete the following reactions:


Write the structure of 2,4-dinitrochlorobenzene


How are ethylamine and ethyl methyl amine distinguished by using nitrous acid?


Predict the product 'A' in the following reaction.

\[\ce{\underset{(Acetyl chloride)}{CH3COCl}->[H2][Pd-BaSO4]A + HCl}\]


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