The product of the reaction between $2-$methyltetrahydrofuran and $HI$ is:

In which of the following reactions is the product obtained $t-$butyl methyl ether?

The major product $(P)$ in the following reaction is:

Which of the following reactions will give ether as the major product?

$A$ 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 $(P)$:

An organic compound $'A'$ $(C_9H_{10}O)$ when treated with conc. $HI$ undergoes cleavage to yield compounds $'B'$ and $'C'$. $'B'$ gives a yellow precipitate with $AgNO_3$ whereas $'C'$ tautomerizes to $'D'$. $'D'$ gives a positive iodoform test. $'A'$ could be :