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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Pushapraj Rajput posted an Question
May 13, 2021 • 14:01 pm
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30 points
30 points
- CSIR NET
- Chemical Sciences
Q.1 5 the barrier for rotation about the indicated bonds will be maximum for (a) (b) (c) (d) same in53 08:2 sol. (b) in structure li, polar ressonangon
Q.1 5 The barrier for rotation about the indicated bonds will be maximum for (A) (B) (C) (D) Same in53 08:2 Sol. (B) In structure lI, polar ressonangon
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Dinesh khalmaniya 1![best-answer]()
option B if Both the ring become aromatic after polar interaction the. whole compound will be aromatic. if one ring is aromatic and another is antiaromatic then whole molecule will be non aromatic. now we will check aromaticity in case of I and III both are aromatic so double bond become sing bond after polar interaction due to aromaticity and have less barrior for rotation. in case of II, whole molecule is non aromatic so polar interaction is not possible and double bond not break. so rotation barrior is very high in this case