Thank you for your useful comment!
I’ll try to check to keep the total charge constant.
I put positive charge on the M in the RHS of no.6.
Your clear explanation helped me understand these resonance structures, thank you!
Thank you for your insightful comments!
I understand mesomeric effect in these resonance structure.
I understand the electrons of pi bond cannot be transferred to a saturated carbon and but to the next carbon of the pi bond. I think the electrons of pi bond can be transferred to a next cation...
I rethink the answers of these seven questions of resonance structure (1, 3-8). I hope these are correct.
I think as there are only one Pi-bond in 1-7 questions, there is no mesomeric effect in these questions.
I couldn’t understand the answer of the eighth question is wrong. The answer of the...
Summary:: I would like to know if my answers of each resonance structure of the eight questions is correct or not.
I think the Inductive effect (induction) attracts electrons and affects up to three bonds as electron attracting group.
And the Mesomeric effect affects Pi- bonds as long as there...