In which of the following reactions is a carbanion $NOT$ formed as an intermediate?

The alkene formed as a major product in the below elimination reaction is

In a reaction,if half of the double bond is broken and two new bonds are formed,this is a case of

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:

Identify the product and the name of the reaction for the following transformation:
$
\begin{array}{c}
\text{Decalin-1-one oxime} \rightarrow{H_2SO_4} \text{Product}
\end{array} $
(The starting material is a ketoxime derived from decalin$-1-$one with a methyl group at the alpha position).

Which of the following is the correct order of reactivity for: