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Q.
The order of the $- I$ effect orbitals in :
Organic Chemistry – Some Basic Principles and Techniques
Solution:
[$-I$ effect $\propto$ EN $\propto \%$ s-character]
as $\%$ s character increases, EN also increases
$\frac{ sp > sp ^{2}> sp ^{3}}{\% s -\text{chr} \downarrow, EN \downarrow,-\text{Ieffect} \downarrow}$