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Give chemical tests to distinguish betwe...

Give chemical tests to distinguish between the following pairs of compounds :
(a) Aniline and Ethylamine
(b) Enthylamine and Dimethylamine

Text Solution

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(a) Aniline forms diazonium salt with `NaNO_(2)//HCI` which gives orange red dye with `beta ` napththol. Ethyl amine does not give this test .

(b) Ethyl amine gives foul smelling ethyl isocyanide on heating with chloroform and potassium hydroxide solution. Dimethyl amine does not give this test.
`C_(2)H_(5)NH_(2)+CHCI_(3)+3KOH rarr C_(2)H_(5)NC+3KCI+3H_(2)O`
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OSWAAL PUBLICATION-ORGANIC COMPOUNDS CONTAINING NITROGEN-CYANIDES , ISOCYANIDES AND DIAZONIUM SALTS PREPARATION , PHYSICAL AND CHEMICAL PROPERTIES USES ( Short Answer Type Questions )
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  2. How do you convert ethane nitrite to ethanamine ? Give equation.

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  3. Explain the mechanism of nitration of benzene .

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  4. What is zwitter ion ? Write zwitter ion structure of Alanine.

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  5. What happens when aniline is heated with chloroform and alcoholic pota...

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  6. Explain the following ructions : (a) Gabriel Phthalimide reaction ...

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  7. Give chemical tests to distinguish between the following pairs of comp...

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  8. Give reasons : (i) Aniline is a weaker base than cyclohexyl amine. ...

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  9. Account for the following : (i) Diazonium salts of aromatic amines ...

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  10. Distinguish between : (i) Methyl amine and dimethyl amine, (ii) An...

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  11. Describe the following giving the relevant chemical equation in each c...

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  12. Bring about the following conversions : Nitrobenzene to benzoic acid

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  13. Bring about the following conversions : Benzyl chloride to 2-phenyl ...

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  14. Give the structure of A, B and C In the following reactions : CH(3)B...

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  15. Give the structure of A, B and C In the following reactions : CH(3)C...

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  16. How will you convert the following : (i) Nitrobenzene into aniline ...

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  17. Explain why an alkyl amine is more basic than ammonia.

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  18. How would you convert : (i) Aniline to nitrobenzene , (ii) Aniline...

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