Question

Match the compounds given in List -I with their characteristic reactions given in List -II. Select the correct option..

List -I Compounds		List-II Reactions
(a)	$C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}N{H}_2$	(i)	alkaline hydroloysis
(b)	$C{H}_{3}C\equiv CH$	(ii)	with KOH (alcohol) and $CHC{l}_3$ produces bad smell
(c)	$C{H}_{3}C{H}_{2}COOC{H}_3$	(iii)	gives white ppt. with ammonical $AgN{O}_3$
(d)	$C{H}_{3}CH(OH)C{H}_3$	(iv)	with Lucas reagent cloudiness appears after 5 minutes

• A. (a) $\to$ (iii) ,(b) $\to$ (ii) ,(c) $\to$ (i) ,(d) $\to$ (iv)
• B. (a) $\to$ (ii) ,(b) $\to$ (iii) ,(c) $\to$ (i) ,(d) $\to$ (iv)
• C. (a) $\to$ (iv) ,(b) $\to$ (ii) ,(c) $\to$ (iii) ,(d) $\to$ (i)
• D. (a) $\to$ (ii) ,(b) $\to$ (i) ,(c) $\to$ (iv) ,(d) $\to$ (iii)

Answer 1

Answer: (B)

[A] $1^{\circ }$ amines give a bad smelling compound, called carbylamine, with alcoholic $KOH$ and $CHC{l}_3$. The reaction is called carbylamines reaction.
$C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}N{H}_2\stackrel{CHC{l}_3+\text{ alc }KOH}{\to }C{H}_3{\left(C{H}_2\right)}_{3}NC$ bad smelling
[B] Terminal alkynes like $C{H}_{3}C\equiv CH$ give white precipitate with ammonia cal
$AgN{O}_3.C{H}_{3}C\equiv CH+AgN{O}_3+N{H}_{4}OH\to \underset{\text{white ppt}}{C{H}_{3}C\equiv CAg}$
[C] Ester $\left(C{H}_{3}C{H}_{2}COOC{H}_3\right)$ undergoes alkaline hydrolysis. $C{H}_{3}C{H}_{2}COOC{H}_3+NaOH\to C{H}_{3}C{H}_{2}COONa+C{H}_{3}OH$ [D] $2^{\circ }$ alcohols (the alcohols that have $C{H}_{3}CHOH$-group) give cloudiness with Lucas reagent (anhy $ZnC{l}_2++$ conc $HCl$ ): within 5 minutes.