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

The product formed by the reaction of $C_2H_5OH$ with thionyl chloride is ...... .

The major product $(X)$ formed in the given reaction is an example of

Which of the following reaction$(s)$ can be used for the preparation of alkyl halides?
$I$. $CH_3CH_2OH + HCl \xrightarrow{Anh. ZnCl_2}$
$II$. $CH_3CH_2OH + HCl \rightarrow$
$III$. $(CH_3)_3COH + HCl \rightarrow$
$IV$. $(CH_3)_2CHOH + HCl \xrightarrow{Anh. ZnCl_2}$

Which among the following methods is used to prepare Grignard reagent?

Identify the halogen exchange reaction from the following.