Incorrect statement regarding aromaticity among the following is:

Non aromatic molecule(s)among the following is/are :

1.		2.
3.		4.	All of the above

Incorrect statement towards reactivity of benzene is:

Benzene is extraordinarily stable, though it contains three double bonds, because of :

1. Delocalized protons

2. Delocalized neutrons

3. Resonance

4. None of the above.

The numbers of structural isomers of ${\mathrm{C}}_4{\mathrm{H}}_8$ (with one double bond) and ${\mathrm{C}}_5{\mathrm{H}}_8$ (with one triple bond) are:

1. ${\mathrm{C}}_4{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>3<mspace\; width="1em"></mspace>;<mspace\; width="1em"></mspace>{\mathrm{C}}_5{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>3$

2. ${\mathrm{C}}_4{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>4<mspace\; width="1em"></mspace>;<mspace\; width="1em"></mspace>{\mathrm{C}}_5{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>4$

3. ${\text{C}}_4{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>3<mspace\; width="1em"></mspace>;<mspace\; width="1em"></mspace>{\mathrm{C}}_5{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>4$

4.$<mspace\; width="1em"></mspace>{\mathrm{C}}_4{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>4<mspace\; width="1em"></mspace>;<mspace\; width="1em"></mspace>{\mathrm{C}}_5{\mathrm{H}}_8<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>3$