Which of the following reagents reacts with ammonia to form a brown precipitate?

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

Hinsberg's reagent is

Which of the following can be detected by carbylamine reaction?

An organic compound '$X$' showing the following solubility profile is:
'$X$' $\xrightarrow{\text{water}}$ Insoluble
'$X$' $\xrightarrow{5\% \,HCl}$ Insoluble
'$X$' $\xrightarrow{10\% \,NaOH}$ Insoluble
'$X$' $\xrightarrow{10\% \,NaHCO_3}$ Insoluble

Match List-$I$ with List-$II$:

List-$I$ (Reagents used)	List-$II$ (Compound with functional group detected)
$A.$ Alkaline solution of copper sulphate and sodium citrate	$I.$ $C_6H_5CH(OH)CH_3$
$B.$ Neutral $FeCl_3$ solution	$II.$ $CH_3CH(NH_2)CH_3$
$C.$ Alkaline chloroform solution	$III.$ $C_6H_5CH_2CHO$
$D.$ Potassium iodide and sodium hypochlorite	$IV.$ $m-C_2H_5C_6H_4OH$

Choose the correct answer from the options given below: