-Which of these molecules is most likely to contain good π overlap of p orbitals,as shown in figure (a) ,rather than poor π overlap of p orbitals,as shown in figure (b) ?

Question

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Good π overlap of p orbitals is more likely in molecules where the central atom is smaller, allowing for better orbital overlap. Carbon (in option A) is the smallest atom listed, making it the most likely to exhibit good π overlap in its compounds, compared to silicon, germanium, and tin, which are larger and would have poorer overlap.

-Which of These Molecules Is Most Likely to Contain Good