Incorrect statement regarding aromaticity is-

1. 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 electron, where n = 0, 1, 2 … etc. This is known as Huckel’s rule. 

4. Compound should have a linear structure

 

 

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
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Not an aromatic molecule is/are -

1. 

2.  

3. 

4.  All of the above

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
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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

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
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Benzene is extraordinarily stable, though it contains three double bonds, because of -

1. Delocalized protons

2. Delocalized neutrons

3. Resonance

4. None of these

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
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The numbers of structural isomers of C4H8 (one double bond) and C5H8 (one triple bond) are -

1. C4H8 = 3 ; C5H8 = 3

2. C4H8 = 4 ; C5H8 = 4

3. C4H8 = 3 ; C5H8 = 4

4. C4H8 = 4 ; C5H8 = 3

    

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
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