Identify the product of the above rearrangement reaction.

The arenium ion which is not involved in the bromination of aniline is:

To which of the following four types does this reaction belong: $B^{-} + R - A \to B - R + A^{-}$?

What is the fission of a covalent bond? Explain its types with examples and the main differences.

The enol percentage of the following compound is maximum for:

In the above reaction,the electrophile is substituted at the meta position only,due to:
$I$. Electron density is more at ortho $\&$ para positions
$II$. Electron density is relatively less at ortho $\&$ para positions
$III$. Electron density is less at meta position
$IV$. Electron density is relatively more at meta position
The correct answer is: