1.

Among the following, the least and the best `H^(Θ)` ion donor, respectively, are:A. B. C. D.

Answer» Correct Answer - A::B
More EDG means more negative charge density on the C of `(C-H)` group and consequentyl more easily the `H^(o+)` ion is lost. Order of EDGs:
`Me ("three H.C. structures") gt Et ("two H.C. structures") gt i-Pr ("one H.C. structure") gt Ph ("structure") gt Ph ("standard")`
Decreasing order of `H^(Θ)` donor.
`underset(("Best"))(b)gt(c )gtunderset(("Least"))((d) gt (a))`


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