$A$ Grignard reagent may be made by reacting magnesium with

$Ph-CH(OH)-CH_3 \xrightarrow{SOCl_2}$ major product

Which of the following compounds is obtained by using Swartz reaction?

Preparation of alkyl halides in the laboratory is least preferred by:

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 of the following compounds is obtained by using the Finkelstein reaction?