NEET Test Series from KOTA - 10 Papers In MS WORD
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GENERAL ORGANIC CHEMISTRY
232288
Which of the following chemical system is non aromatic?
1
2
3
4
Explanation:
The compound does not follow Huckel's rule is not aromatic. It has $4 \pi \mathrm{e}^{-}$system is non-aromatic. Other compounds are aromatic.
Karnataka NEET 2013
GENERAL ORGANIC CHEMISTRY
232322
According to Huckel's rule an aromatic compound must possess
1 $(4 \mathrm{n}+1) \pi$ electrons
2 $(4 n+2) \pi$ electrons
3 $4 \mathrm{n} \pi$ electrons
4 $(4 n+3) \pi$ electrons
Explanation:
(B): According to Huckel's rule aromatic compound must possess $(4 n+2) \pi$ electrons.
J and K CET-(2007)
GENERAL ORGANIC CHEMISTRY
232324
Benzene does not undergo addition reactions easily because
1 it has a cyclic structure
2 it has 6H-atoms
3 double bonds in it are very strong
4 resonance stabilized system is to be preserved
Explanation:
In benzene, the $\pi$-electrons are delocalized and makes the structure more stable. Delocalization of $\pi$ electron is called resonance. Thus, benzene does not give addition reactions because of resonance stabilization.
232288
Which of the following chemical system is non aromatic?
1
2
3
4
Explanation:
The compound does not follow Huckel's rule is not aromatic. It has $4 \pi \mathrm{e}^{-}$system is non-aromatic. Other compounds are aromatic.
Karnataka NEET 2013
GENERAL ORGANIC CHEMISTRY
232322
According to Huckel's rule an aromatic compound must possess
1 $(4 \mathrm{n}+1) \pi$ electrons
2 $(4 n+2) \pi$ electrons
3 $4 \mathrm{n} \pi$ electrons
4 $(4 n+3) \pi$ electrons
Explanation:
(B): According to Huckel's rule aromatic compound must possess $(4 n+2) \pi$ electrons.
J and K CET-(2007)
GENERAL ORGANIC CHEMISTRY
232324
Benzene does not undergo addition reactions easily because
1 it has a cyclic structure
2 it has 6H-atoms
3 double bonds in it are very strong
4 resonance stabilized system is to be preserved
Explanation:
In benzene, the $\pi$-electrons are delocalized and makes the structure more stable. Delocalization of $\pi$ electron is called resonance. Thus, benzene does not give addition reactions because of resonance stabilization.
232288
Which of the following chemical system is non aromatic?
1
2
3
4
Explanation:
The compound does not follow Huckel's rule is not aromatic. It has $4 \pi \mathrm{e}^{-}$system is non-aromatic. Other compounds are aromatic.
Karnataka NEET 2013
GENERAL ORGANIC CHEMISTRY
232322
According to Huckel's rule an aromatic compound must possess
1 $(4 \mathrm{n}+1) \pi$ electrons
2 $(4 n+2) \pi$ electrons
3 $4 \mathrm{n} \pi$ electrons
4 $(4 n+3) \pi$ electrons
Explanation:
(B): According to Huckel's rule aromatic compound must possess $(4 n+2) \pi$ electrons.
J and K CET-(2007)
GENERAL ORGANIC CHEMISTRY
232324
Benzene does not undergo addition reactions easily because
1 it has a cyclic structure
2 it has 6H-atoms
3 double bonds in it are very strong
4 resonance stabilized system is to be preserved
Explanation:
In benzene, the $\pi$-electrons are delocalized and makes the structure more stable. Delocalization of $\pi$ electron is called resonance. Thus, benzene does not give addition reactions because of resonance stabilization.
