Which of the following compounds will $NOT$ yield benzoic acid upon oxidation with alkaline $KMnO_4$ followed by heating?

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:

The $C - O - C$ bond angle in ethers is approximately -

Which of the following substances resists the nucleophilic attack of $OH^{-}$ ions?

Which of the following reactions will not give ether as a major product?

The major product formed in the following reaction is a mixture of: