MEDIUMMCQ SINGLEJEE Mains ChemistryInorganic ChemistryAlkyl and Aryl HalidesSingle Choice Questions
Consider the following (I) (II) (III) (IV) when attached to sp 3 -hybridized carbon, their leaving group ability in nucleophilic substitution reactions decreases in the order:
A.I > II > III > IV (b) I > II > IV > III
C.IV> I > II > III
D.IV > III > II > I
Explanation
(I) Leaving group ability depends upon stability of anions more equivalent resonating structure more will be the stability of conjugate ion. (II) Electron withdrawing group stabilized negative charge.
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