Identify the Finkelstein reaction from the following.

Match the following:

Reactants	Products
$A$. $C_2H_5Cl$,moist $Ag_2O$	$I$. $CH_3CH_2ONO$
$B$. $C_2H_5Cl$,aqueous ethanolic $AgCN$	$II$. $C_2H_4$
$C$. $C_2H_5Cl$,aqueous ethanolic $AgNO_2$	$III$. $CH_3CH_2OH$
$D$. $C_2H_5Cl$,ethanolic $KOH$	$IV$. $CH_3CH_2NC$

The correct match is:

Most reactive compound toward $S_N1$ is

Identify the chiral molecule from the following.

The conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone is known as:

$A$ bottle containing $C_6H_5I$ and $C_6H_5CH_2I$ has lost its label. To identify them,samples $A$ and $B$ are taken in separate test tubes and boiled with $NaOH$ solution. Finally,the solution in each test tube is acidified with dilute $HNO_3$ and then a few drops of $AgNO_3$ solution are added. Substance $B$ gives a yellow precipitate. Which statement is correct for this process?