Acetylation reaction with acetyl chloride is carried out in the presence of which solvent?

Methanol and ethanol are miscible in water due to

Which of the following substances acts as a dehydrating agent for alcohols?

Compare the rate of dehydration of $(i)$,$(ii)$ and $(iii)$ by conc. $H_2SO_4$.

An alcohol $X$ $(C_4H_{10}O)$ reacts with concentrated $HCl$ at room temperature to give $Y$ $(C_4H_9Cl)$. Reaction of $X$ with copper at $573 \ K$ gives $Z$. What is $Z$?

Which of the following reactions will $NOT$ occur with heated copper at $300\,^oC$?