The major product formed in the following reaction is: $CH_{3}Br + CH_{3}CH_{2}ONa \longrightarrow$

The reaction of $2,2-$dimethyltetrahydrofuran with $HBr$ gives:

Illustrate with examples the limitations of Williamson synthesis for the preparation of certain types of ethers.

When diethyl ether is reacted with an excess of chlorine in the presence of sunlight,what is the final product obtained?

In the following reaction sequence,structures of $A$ and $B$,respectively will be

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R).$
Assertion $(A):$ Synthesis of ethyl phenyl ether may be achieved by Williamson synthesis.
Reason $(R):$ Reaction of bromobenzene with sodium ethoxide yields ethyl phenyl ether.
In the light of the above statements,choose the most appropriate answer from the options given below: