Which does not react with Fehling solution?

What is the product $E$ in the following reaction?

What is the product formed when acetaldehyde reacts with $PCl_5$?

Benzophenone does not react with:

Given below are two statements,one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: $3$-chloro-$2$-methylpentan-$3$-one can be subjected to Wolff-Kishner reduction to give $3$-chloro-$2$-methylpentane.
Reason $R$: Wolff-Kishner reduction is used to convert $C=O$ into $CH_2$.

Which compound does not form iodoform with alkali and iodine?