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)	$CH_3CH_2CH_2CH_2NH_2$	(i)	alkaline hydroloysis
(b)	$ CH_3C \equiv CH$	(ii)	with KOH (alcohol) and $CHCl_3$ produces bad smell
(c)	$ CH_3CH_2COOCH_3 $	(iii)	gives white ppt. with ammonical $AgNO_3$
(d)	$ CH_3CH(OH)CH_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 $CHCl _3$. The reaction is called carbylamines reaction.
$CH _3 CH _2 CH _2 CH _2 NH _2 \xrightarrow{ CHCl _3+\text { alc } KOH } CH _3\left( CH _2\right)_3 NC$ bad smelling
[B] Terminal alkynes like $CH _3 C \equiv CH$ give white precipitate with ammonia cal
$AgNO _3 . CH _3 C \equiv CH + AgNO _3+ NH _4 OH \rightarrow \underset{\text{white ppt}}{CH _3 C \equiv CAg}$
[C] Ester $\left( CH _3 CH _2 COOCH _3\right)$ undergoes alkaline hydrolysis. $CH _3 CH _2 COOCH _3+ NaOH \rightarrow CH _3 CH _2 COONa + CH _3 OH$ [D] $2^{\circ}$ alcohols (the alcohols that have $CH _3 CHOH$-group) give cloudiness with Lucas reagent (anhy $ZnCl _2++$ conc $HCl$ ): within 5 minutes.