Incorrect statement regarding aromaticity among the following is:
1. | The compound should have a planar structure. |
2. | The π–electrons of the compound are completely delocalized in the ring. |
3. | The total number of π–electrons present in the ring should be equal to (4n + 2) π electrons, where n = 0, 1, 2 … etc. This is known as Huckel’s rule. |
4. | The compound should have a linear structure. |
Non aromatic molecule(s)among the following is/are :
1. | 2. | ||
3. | 4. | All of the above |
Incorrect statement towards reactivity of benzene is:
1. | It undergoes electrophilic substitution reactions very easily. |
2. | Nucleophiles are attracted by a benzene ring. |
3. | Benzene is a planar molecule. |
4. | It has 12 sigma bonds. |
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 (with one double bond) and (with one triple bond) are:
1.
2.
3.
4.