The rate of the reaction is influenced by the hyperconjugation effect of group R. If R is sequentially `CH_(3)^(-)` (II) `CH_(3)-CH_(2)` (III) `CH_(3)

The rate of the reaction is influenced by the hyperconjugation effect of group R. If R is sequentially `CH_(3)^(-)` (II) `CH_(3)-CH_(2)` (III) `CH_(3)
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The rate of the reaction is influenced by the hyperconjugation effect of group R. If R is sequentially `CH_(3)^(-)` ... ii) D. (iii), (ii), (i), (iv)
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