Isopropyl alcohol on oxidation gives

The product$(s)$ not obtained in the following reaction is:

$Ethanol \xrightarrow{H_2SO_4, 413 K} \text{diethyl ether}$. The above reaction is which type?

What is the correct order of reactivity of the following alcohols towards $H-X$?
$(I) \; CH_2 = CH - OH$
$(II) \; CH_2 = CH - CH_2OH$
$(III) \; CH_3 - CH_2 - OH$
$(IV) \; CH_3 - CH(OH) - CH_3$

Identify the organic product formed when ethylene glycol is heated with acidic potassium permanganate $(KMnO_4)$.

What is obtained by the reaction of primary and secondary alcohols with red-hot copper at $573 \ K$?