What is the process of converting an oxime into an amide by rearrangement in the presence of a strong acid called?

An optically active alkyl halide $C_4H_9Br$ $[A]$ reacts with hot $KOH$ dissolved in ethanol and forms alkene $[B]$ as the major product,which reacts with bromine to give dibromide $[C].$ The compound $[C]$ is converted into a gas $[D]$ upon reacting with alcoholic $NaNH_2.$ During hydration,$18 \ g$ of water is added to $1 \ mole$ of gas $[D]$ on warming with mercuric sulphate and dilute acid at $333 \ K$ to form compound $[E].$ The $IUPAC$ name of compound $[E]$ is $:$

In the above reaction,which of the following will be obtained in maximum yield?

Which product is not formed in the following reaction $:-$ $CH_3CHO + CH_3-CH_2-CHO \xrightarrow[\text {(ii) } \Delta]{\text {(i) } NaOH}$

Which one of the following reactions can be used for the preparation of $\beta$-hydroxy acid derivatives?

The enolate ion that reacts with $3-$buten$-2-$one to form $(Y)$ is