Among the compounds $I-IV$,the compound having the lowest boiling point is:

Identify the product obtained when ethoxybenzene reacts with hot and concentrated $HI$.

Give the major products that are formed by heating each of the following ethers with $HI$.
$(i)$ $CH_3-CH_2-CH(CH_3)-CH_2-O-CH_2-CH_3$
$(ii)$ $CH_3-CH_2-CH_2-O-C(CH_3)_2-CH_2-CH_3$
$(iii)$ $C_6H_5-CH_2-O-C_6H_5$

Match the products of the reaction with anisole in Column-$I$ with the reagents in Column-$II$. Find the correct reagent for the product in Column-$I$ from Column-$II$.

Column-$I$ (Product)	Column-$II$ (Reagent)
$A$. Mainly $p$-bromoanisole	$i$. Anhydrous $AlCl_3$,$CH_3COCl$
$B$. $4$-nitroanisole	$ii$. $CH_3Cl$,anhydrous $AlCl_3$ in $CS_2$
$C$. $4$-methoxytoluene	$iii$. $Br_2$ in ethanoic acid
$D$. $4$-methoxyacetophenone	$iv$. Mixture of conc. $H_2SO_4$ and $HNO_3$

When $CH_2 = CH - O - CH_2 - CH_3$ reacts with $1 \ mol$ of $HI$,one of the products formed is

Predict the major products for the following reaction:
$\text{Cyclohexyl-O-C(CH}_3)_3 \xrightarrow{HI \text{ (excess)}, \Delta} ?$