Which Among These Species Does Not Exhibit Resonance?

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SUMMARY

The species that does not exhibit resonance among the options provided is 1,4-Cyclohexadiene. Participants in the discussion highlighted that resonance structures could be drawn for CH2=CH-CΘH2, CH2=CHCl, and CH3-NO2, while 1,4-Cyclohexadiene lacks the necessary conjugation to allow for resonance. The conversation emphasized the importance of understanding resonance structures and encouraged participants to illustrate their reasoning through drawn structures.

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  • Knowledge of molecular structures and bonding
  • Ability to draw and interpret Lewis structures
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Vavi Ask
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Among the following species, which one does not exhibit resonance?
1. CH2=CH-CΘH2 (the 3rd carbon has a -ve charge)
2. CH2=CHCl
3. 1,4-Cyclohexadiene
4. CH3-NO2
Please, can anyone tell me which one and how did you get it?
 
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Vavi Ask said:
Please, can anyone tell me which one and how did you get it?
Which one do you think it is and why?
 
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TeethWhitener said:
Which one do you think it is and why?
I believe it's option 3 because that's the only compound I'm not able to draw resonance structures for. But I still have doubt with the others. Can you please help me?
 
What resonance structures were you able to draw for the others?
 
TeethWhitener said:
What resonance structures were you able to draw for the others?
They're all wrong, coz I was only able to draw chains and not branches. But still, I believe they have resonance structures. But option 3, I'm not able to do anything.
 
Vavi Ask said:
They're all wrong, coz I was only able to draw chains and not branches.
I don't understand what this means. What are the structures you drew?
 
TeethWhitener said:
I don't understand what this means. What are the structures you drew?
Sorry sir, I don't know how to explain further. I'm not able to insert the picture of what I've drawn, otherwise I could've shown you at what conclusion I've arrived at. Please sir, it's urgent and important. I shall compare your answer with what I've understood or got and learn it.
 
Vavi Ask said:
Sorry sir, I don't know how to explain further. I'm not able to insert the picture of what I've drawn, otherwise I could've shown you at what conclusion I've arrived at. Please sir, it's urgent and important. I shall compare your answer with what I've understood or got and learn it.
This is not how we do things here. We can help get to the solution, but we will not give you the answer.

This thread belongs in the homework section of PF. Please post there with a proper attempt at a solution.

Thread closed.
 
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