Identify the correct stability order of the resonating structures.

Among the following,the antiaromatic compounds are:

Which of the following species has a positive charge that is not involved in resonance?

Correct statements for the given reaction are :
$A$. Compound '$B$' is aromatic
$B$. The completion of above reaction is very slow
$C$. '$A$' shows tautomerism
$D$. The bond lengths $C-C$ in compound $B$ are found to be same
Choose the correct answer from the options given below :

Among the following structures, the one which is not a resonating structure of others is:

The most stable resonating structure is