Match the items of Column-$I$ and Column-$II$.

Column-$I$	Column-$II$
$A$. $S_N1$ reaction	$1$. vic-dibromides
$B$. Chemicals in fire extinguisher	$2$. gem-dihalides
$C$. Bromination of alkenes	$3$. Racemisation
$D$. Alkylidene halides	$4$. Saytzeff rule
$E$. Elimination of $HX$ from alkyl halide	$5$. Chlorobromocarbons

(A-3, B-5, C-1, D-2, E-4) $A-3, B-5, C-1, D-2, E-4$
$A$. $S_N1$ reactions proceed through the formation of a carbocation intermediate,which leads to the formation of a racemic mixture (Racemisation).
$B$. Chlorobromocarbons are commonly used as chemicals in fire extinguishers.
$C$. Bromination of alkenes involves the addition of bromine across the double bond to form vic-dibromides.
$D$. Alkylidene halides are also known as gem-dihalides,where two halogen atoms are attached to the same carbon atom.
$E$. The elimination of $HX$ from an alkyl halide follows the Saytzeff rule,which states that the more substituted alkene is the major product.