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Identify the most stable species in the following set of ions giving reasons. (a) overset(+)(C )H_(3), overset(+)(C )H_(2) Br, overset(+)(C )HBr_(2), overset(+)(C )Br_(3) (b) overset(Θ)(C )H_(3), overset(Θ)(C )H_(2)Cl, overset(Θ)(C )HCl_(2), overset(Θ)(C )Cl_(3) |
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Answer» Solution :(a) `overset(+)(C )H_(3)` is the most STABLE SPECIES because the -I effect of Br intensifies the +ve charge and hence destabilise the species. Further, more the number of Br atoms, less stable in thespecies. Thus, the STABILITY of these species decreases in the order. `overset(+)(C )H_(3) gt overset(+)(C )H_(3)Br gt overset(+)(C )HBr_(2) gt Br_(3)` (b) `-I` effect of the Cl atom disperse the -ve charge and thus stabilizes the species. Further, more th number of Cl atoms, more is the dispersal of the -ve charge and hence more stable is the species and hence more stable is the species. Thus, `-C Cl_(3)` is the most stable species. Thus stability of other species decreases in the order. `-CHCl_(2) gt -CH_(2)Cl gt -CH_(3)` |
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