In $CH_3CH_2OH$,which bond dissociates heterolytically?

When alcohol reacts with concentrated $H_2SO_4$,the intermediate compound formed is:

$0.44 \ g$ of a monohydric alcohol when added to methylmagnesium iodide in ether liberates $112 \ cm^{3}$ of methane at $S.T.P.$ With $PCC$,the same alcohol forms a carbonyl compound that answers the silver mirror test. The monohydric alcohol is:

Why is sulphuric acid not used during the reaction of alcohols with $KI$?

$PhMgBr + (CH_3)_2CH-OH \to A$. Identify the product $A$.

An organic compound $X$ on treatment with acidified $K_2Cr_2O_7$ gives a compound $Y$ which reacts with $I_2$ and sodium carbonate to form tri-iodomethane. The compound $X$ is