Identify the strongest base from the given compounds.

Identify the amine formed when $ethyltrimethyl$ ammonium iodide is treated with silver hydroxide and further heated strongly.

Which of the following statements is incorrect?

Given below are two statements:
Statement $I$: Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at $273-278 \ K$. It decomposes easily in the dry state.
Statement $II$: Insertion of iodine into the benzene ring is difficult and hence iodobenzene is prepared through the reaction of benzenediazonium salt with $KI$. In the light of the above statements,choose the most appropriate answer from the options given below:

Identify $X$ and $Y$ in the following reactions:
$Nitrobenzene \xrightarrow{Zn/NH_4Cl} X$
$Nitrobenzene \xrightarrow{Zn + KOH/C_2H_5OH} Y$

Assertion : Aniline is a better nucleophile than anilinium ion.
Reason : Anilinium ion has a positive charge.