$C_2H_5I$ and $Ag_2O$ react to produce:

Identify the product $(A)$ of the following reaction:
$C_2H_5-O-C_2H_5 + CO \xrightarrow[500 \text{ atm}]{BF_3 / 150^{\circ}C} A$

$1-$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

In the reaction shown below,the products are:

Allyl phenyl ether can be prepared by heating:

Match the starting materials given in Column-$I$ with the products formed by these (Column-$II$) in the reaction with $HI$.

Column-$I$	Column-$II$
$(A)$ $CH_3-O-CH_3$	$(1)$ $C_6H_5OH + CH_3I$
$(B)$ $(CH_3)_2CH-O-CH_3$	$(2)$ $(CH_3)_3C-I + CH_3OH$
$(C)$ $(CH_3)_3C-O-CH_3$	$(3)$ $C_6H_5I + CH_3OH$
$(D)$ $C_6H_5-O-CH_3$	$(4)$ $CH_3OH + CH_3I$
	$(5)$ $(CH_3)_2CHOH + CH_3I$
	$(6)$ $(CH_3)_2CH-I + CH_3OH$
	$(7)$ $(CH_3)_3COH + CH_3I$