Identify the reagents used for the following conversion in the correct order.

Styrene on reaction with reagent $X$ gave $Y$, which on hydrolysis followed by oxidation gave $Z$. $Z$ gives a positive $2,4-DNP$ test but does not give the iodoform test. What are $X$ and $Z$ respectively?

Power alcohol is a mixture of

Product $(C)$ of the above reaction is

What is the organic product obtained when ethylene glycol is heated with acidified potassium permanganate?

Which of the following reactions are not feasible?
$I$. $CH_3CH=CH_2 \xrightarrow{HCl, (C_6H_5CO)_2O_2} CH_3CH_2CH_2Cl$
$II$. $C_6H_6 + CH_3CH_2CH_2Cl \xrightarrow{AlCl_3} C_6H_5CH(CH_3)_2$
$III$. $CH_3CHClCH_2Cl \xrightarrow{KOH, \Delta} CH_3C \equiv CH$
$IV$. $CH_3CH=CHCH_3 \xrightarrow{KMnO_4 / H^+} CH_3COOH$