Write the names of reagents and equations for the preparation of following ethers by Williamson's synthesis `:`
(i) 1-Methyoxypropane (ii) 2-Ethoxy-2-methylpropane
(iii) Ethoxybenzene

Explanation

`(i) underset("Sodium propoxide")(CH_(3)CH_(2)CH_(2)overset(-)(O)Na^(+))+underset("Bromomethane")(Br-CH_(3))overset("Heat")(rarr)underset("1-Methoxypropane")(Ch_(3)CH_(2)CH_(2)-O-CH_(3))+NaBr `
(ii) `underset("Sodium -2-methyl-2-propoxide")(CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-overset(-)(O)Na^(+))+underset("Bromoethane")(Br-C_(2)H_(5))overset("Heat")(rarr)underset("2-Ethoxy-2-methylpropane")(CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-OC_(2)H_(5))+NaBr`