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Which of the following compound shows the correct decreasing order of solvolysis with aqueous ethanol? The correct choice is:

Which of the following compound shows the correct decreasing order of solvolysis with aqueous ethanol? The correct choice is: Correct Answer III > II > IV > I

The solvation of above compound can be compared by this trend, i.e. Solvation trend: 3O halide > 2O halide > 1O halide > vinylic halide. So, (III) molecule is an example of 3O halide, (II) molecule is an example of 2O halide, (IV) molecule is an example of 1O halide and (I) molecule is an example of vinylic halide.

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