Which of the following compounds does $NOT$ undergo Williamson's synthesis?

Identify the product obtained when ethers are dissolved in cold concentrated sulphuric acid.

$A$ solution of $Ph_3CCO_2H$ in concentrated $H_2SO_4$ gives $(X)$ when poured into methanol. $X$ is

An organic compound with the molecular formula $C_4H_{10}O$ does not react with sodium metal and produces only two types of halides upon reaction with excess $HI$. What is the compound?

Give $IUPAC$ names of the following ethers:
$(i)$ $C_2H_5OCH_2CH(CH_3)_2$
$(ii)$ $CH_3OCH_2CH_2Cl$
$(iii)$ $O_2NC_6H_4OCH_3(p)$
$(iv)$ $CH_3CH_2CH_2OCH_3$
$(v)$ $1$-Ethoxy-$4,4$-dimethylcyclohexane
$(vi)$ Ethoxybenzene

The ether shown below when treated with $HI$ produces: