Etherates are:

In the reaction,$C_2H_5OC_2H_5 + CO \xrightarrow[150^{\circ}C, 500 \text{ atm pressure}]{BF_3} X$. What is $X$?

$A$ compound does not react with $2,4-$dinitrophenylhydrazine and $Na$. The compound is:

Ethyl chloride reacts with sodium ethoxide to form a compound $A$. Which of the following reactions also yields $A$?

Give the common and $\text{IUPAC}$ names for the following ether compound:
$1,1-\text{dimethyl}-2-\text{ethoxycyclohexane}$ (structure shown in image).

One mole of an organic compound $A$ with the formula $C_{3}H_{8}O$ reacts completely with two moles of $HI$ to form $X$ and $Y$. When $Y$ is boiled with aqueous alkali,it forms $Z$. $Z$ answers the iodoform test. The compound $A$ is