Match the polymers given in column $-I$ with their main applications given in column $-II$.

Column $-I$	Column $-II$
$A$. Bakelite	$i$. Unbreakable crockery
$B$. Low density polythene	$ii$. Non-stick cookwares
$C$. Melamine-formaldehyde resin	$iii$. Packaging material for shock
$D$. Nylon $-6$	$iv$. Electrical switches
$E$. Polytetrafluoroethene	$v$. Squeeze bottles
$F$. Polystyrene	$vi$. Tyre cords

(A) The correct matches are:
$A$ (Bakelite) $\rightarrow$ $iv$ (Electrical switches)
$B$ (Low density polythene) $\rightarrow$ $v$ (Squeeze bottles)
$C$ (Melamine-formaldehyde resin) $\rightarrow$ $i$ (Unbreakable crockery)
$D$ (Nylon $-6$) $\rightarrow$ $vi$ (Tyre cords)
$E$ (Polytetrafluoroethene) $\rightarrow$ $ii$ (Non-stick cookwares)
$F$ (Polystyrene) $\rightarrow$ $iii$ (Packaging material for shock)
Thus,the correct sequence is: $A-iv, B-v, C-i, D-vi, E-ii, F-iii$.