1^o amine and 2^o amine can be differentiated | vedclass

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(D) $1.$ $CHCl_3 / Alc. KOH$ (Carbylamine test): Only $1^o$ amines give a foul-smelling isocyanide,while $2^o$ amines do not.$2.$ $NaNO_2 / HCl$: $1^o

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All of these

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(D) $1.$ $CHCl_3 / Alc. KOH$ (Carbylamine test): Only $1^o$ amines give a foul-smelling isocyanide,while $2^o$ amines do not.$2.$ $NaNO_2 / HCl$: $1^o$ aliphatic amines form unstable diazonium salts that evolve $N_2$ gas,whereas $2^o$ amines form $N$-nitrosoamines (yellow oily liquids).$3.$ $PhSO_2Cl$ (Hinsberg reagent) then $NaOH$: $1^o$ amines form a sulfonamide soluble in $NaOH$,while $2^o$ amines form a sulfonamide insoluble in $NaOH$.Since all three reagents can distinguish between $1^o$ and $2^o$ amines,the correct answer is $D$.

List-$I$ (Functional group)	List-$II$ (Functional group reagent)
$(a)$ Aliphatic Alcohol	$(i)$ Neutral ferric chloride test
$(b)$ $C_6H_5NH_2$	(ii) Azo dye test
$(c)$ $CH_3CH_2CHO$	(iii) Ceric ammonium nitrate test
$(d)$ Phenol	(iv) Tollen’s reagent test

$1^o$ amine and $2^o$ amine can be differentiated by

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