By which reaction is Freon-$12$ $(CCl_2F_2)$ prepared from $CCl_4$?

Describe the preparation of alkyl halides from alcohols.

Which of the following reactions represents the Swarts reaction?

$A$ gem-dichloride is formed in the reaction except:

The products $A$ and $B$ obtained in the following reactions,respectively,are
$3 ROH + PCl_3 \rightarrow 3 RCl + A$
$ROH + PCl_5 \rightarrow RCl + HCl + B$

Which among the following compounds is used in Swartz reaction?