Hybridisation of oxygen in diethyl ether is

Which among the following is obtained as the major product $x$ in the reaction stated below?
$\text{Anisole} \xrightarrow{\text{conc. } HNO_3, \text{conc. } H_2SO_4} x$

Write the mechanism of the reaction of $HI$ with methoxybenzene.

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

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

$A$ 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 $(P)$: