Liquor poisoning is primarily caused by the presence of which substance?

$4$-chloro-butan-$1$-ol $+ NaOH \to (B)$. The product $(B)$ of the above reaction is:

Alcohols $(i) \ CH_3CH_2CH_2OH$,$(ii) \ CH_3-CH(OH)-CH_3$ and $(iii) \ CH_3-C(CH_3)(OH)-CH_3$ were treated with Lucas reagent (Conc. $HCl + ZnCl_2$). What results do you expect at room temperature?

Explain the effect of an increase in the number of carbon atoms and branching on the boiling points of alcohols and phenols.

When wine is exposed to air,it becomes sour. The reason for this is -

The oxidation product of $2-propanol$ with hot conc. $HNO_3$ is