1.

The ascending order of stability of the carbanion `overset(-)(C)H_(3)(P), C_(6)H_(5)overset(-)(C)H_(2)(Q), (CH_(3))_(2)overset(-)(C)H(R)` and `H_(2)overset(-)(C)-CH = CH_(2)` isA. `P lt R lt S lt Q`B. `R lt P lt S lt Q`C. `R lt P lt Q lt S`D. `P lt R lt Q lt S`

Answer» Correct Answer - B
Stability of carbonium is enhanced by
(i) Presence of conjugation
(ii) Presence of group exerting -I effect
So correct order is `C_(6)H_(5)overset(-)(C)H_(2) gt H_(2)overset(-)(C)-CH= CH_(2)gt overset(-)(C)H_(3) gt (CH_(3))_(3)overset(-)(C)H`.


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