Chemistry - GOC Question with Solution | TestHub
ChemistryGOCRESONANCE AND MESOMERIC EFFECTMedium2 minQB
ChemistryMediumsingle choice
The pentadienyl anion has 6 pi electrons in five pi MOs. Which of the following MOs is the best representation of its LUMO ?
Options:
Answer:
B
Solution:
The 6 electrons fill the three lowest MOs (psi1, psi2, psi3). The LUMO is psi4, the fourth orbital, which has three nodes. Its phases alternate as +, -, (node), +, - , with no lobe on the central carbon.
Only option (B) has this pattern.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
