What product is formed when anisole reacts with concentrated $HNO_3$ and concentrated $H_2SO_4$?

The value of $n$ in the given reaction is:

$C_2H_5-Br + CH_3ONa \to A \xrightarrow[{(cold)}]{{HI}} B,$ product $B$ is

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

$A$ mixed ether $(P)$, when heated with excess of hot concentrated hydrogen iodide, produces two different alkyl iodides which when treated with aqueous $NaOH$ give compounds $(Q)$ and $(R)$. Both $(Q)$ and $(R)$ give a yellow precipitate with $NaOI$. Identify the mixed ether $(P)$:

$1-$Phenoxypropane is treated with excess of conc. $HI$ at $0\,^{\circ}C$ and the mixture of products is treated with thionyl chloride. The products formed are