What is the product obtained when ethanol vapor is passed over $Al_2O_3$ at $240 - 250 \, ^\circ C$?

Give the reactions of ether compounds involving the cleavage of the $C-O$ bond with examples.

The compound shown in the image is prepared in high yield by the reaction:

Write a note on Williamson's ether synthesis.

Which of the following products is formed when ether is exposed to air?

The correct statement regarding $X$ and $Y$ formed in the following reaction is
$(CH_3)_3COC_2H_5 \xrightarrow[\Delta]{HI} \text{halide } (X) + \text{alcohol } (Y)$