Match the compounds given in List I with their characteristic reactions given in List II. Select the correct…
Match the compounds given in List I with their characteristic reactions given in List II. Select the correct option.
- (a)
- (b)
- (c)
- (d)
Solution
(A) $1^{\circ}$ amines give a bad smelling compound, called carbylamine, with alcoholic $\mathrm{KOH}$ and $\mathrm{CHCl}_3$. The reaction is called carbylamine reaction.
$\begin{aligned}
& \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{NH}_2 \stackrel{\mathrm{CHCl}_3+\text { alc } \mathrm{KOH}}{\longrightarrow} \\
& \mathrm{CH}_3\left(\mathrm{CH}_2\right)_3 \mathrm{NC} \\
& \text { bad smelling } \\
&
\end{aligned}$
(B) Terminal alkynes like $\mathrm{CH}_3 \mathrm{C} \equiv \mathrm{CH}$ give white precipitate with ammoniacal $\mathrm{AgNO}_3$.
$\begin{array}{r}
\mathrm{CH}_3 \mathrm{C} \equiv \mathrm{CH}+\mathrm{AgNO}_3+\mathrm{NH}_4 \mathrm{OH} \longrightarrow \\
\mathrm{CH}_3 \mathrm{C} \equiv \mathrm{CAg} \\
\text { white ppt }
\end{array}$
(C) Ester $\left(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOCH}_3\right)$ undergoes alkaline hydrolysis.
$\begin{array}{r}
\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOCH}_3+\mathrm{NaOH} \longrightarrow \\
\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COONa}+\mathrm{CH}_3 \mathrm{OH}
\end{array}$
(D) $2^{\circ}$ alcohols (the alcohols that have $\mathrm{CH}_3 \mathrm{CHOH}$ - group) give cloudiness with Lucas reagent (anhy $\mathrm{ZnCl}_2+$ conc $\mathrm{HCl}$ ) within 5 minutes.
Asked in: NEET 2010 (Mains)
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