Which of the following compounds will yield $Propanone$ upon dehydrogenation?

$3$ moles of ethanol react with $1$ mole of phosphorus tribromide to form $3$ moles of bromoethane and $1$ mole of $X$. Which of the following is $X$?

Which of the following alcohols is most easily dehydrated with concentrated ${H_2SO_4}$?

Ethyl hydrogen sulphate is obtained by the reaction of $H_2SO_4$ on

$A$ sample of $4.5 \ g$ of an unknown monohydric alcohol,$ROH$,was added to methylmagnesium iodide. $A$ gas is evolved,collected,and its volume is measured to be $3.1 \ L$ at $NTP$. The molecular weight of the unknown alcohol is $g/mol$. [Nearest integer]

Ethylene glycol reacts with excess of $PCl_5$ to give