Primary and secondary amines are distinguishe | vedclass

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(C) The distinction between primary $(1^{\circ})$ and secondary $(2^{\circ})$ amines is as follows:$(i)$ Hinsberg test: $1^{\circ}$ amines react with

Vedclass · Accepted Answer

$i, ii, iii$ and $iv$ only

Vedclass · Answer

(C) The distinction between primary $(1^{\circ})$ and secondary $(2^{\circ})$ amines is as follows:$(i)$ Hinsberg test: $1^{\circ}$ amines react with benzenesulfonyl chloride to form a sulfonamide soluble in alkali,while $2^{\circ}$ amines form a sulfonamide insoluble in alkali.$(ii)$ Carbyl amine test: Only $1^{\circ}$ amines give this test (foul-smelling isocyanide),while $2^{\circ}$ amines do not.$(iii)$ Hofmann mustard oil test: Only $1^{\circ}$ amines give this test,while $2^{\circ}$ amines do not.$(iv)$ $HNO_2$ test: $1^{\circ}$ aliphatic amines react with $HNO_2$ to evolve $N_2$ gas,whereas $2^{\circ}$ amines form $N$-nitrosamines (yellow oily liquids).Since all four tests can distinguish between $1^{\circ}$ and $2^{\circ}$ amines,the correct option is $C$.

Primary and secondary amines are distinguished by
$(i)$ Hinsberg test
$(ii)$ Carbyl amine test
$(iii)$ Hofmann mustard oil test
$(iv)$ $HNO_2$ test

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Primary and secondary amines are distinguished by$(i)$ Hinsberg test$(ii)$ Carbyl amine test$(iii)$ Hofmann mustard oil test$(iv)$ $HNO_2$ test