Less contributing structure of nitroethene is :

Most contributing structure in introethene is :

Least contributing resonating structure of nitroethene is :

Least contributing resonating structure of nitroethene is:

The total number of contributing structures for hyperconjugation in propene is

Phenate ion has more number of contributing structures than benzoate ion, but still benzoic acid is a stronger acid. Explain.

How many of the following intermediates heve at least one contributing structure in which all atoms have their octet complete ?