InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
The stability of carbanions in the following (i) `RC-=overset(-)overset(..)C` , (ii) (iii) `R_(2)C=overset(-)overset(..)CH` , (iv) `R_(3)C-overset(-)overset(..)CH_(2)` is in the orderA. `(ii) gt (iii) gt (iv) gt (i)`B. `(iv) gt (ii) gt (iii) gt (i)`C. `(i) gt (iii) gt (ii) gt (iv)`D. `(i) gt(ii) gt (iii) gt (iv)` |
|
Answer» Correct Answer - D `RC-=overset(-)overset(..)C` is the most stable because `C` atom carrying the negative charge is `sp` hybridized (most electronegative `C`). Both (ii) and (iii) have negative charge on `sp^(2)` hybrized `C` atom but (iii) is less stable due to electron releasing alkyl groups. (iv) is the least stable as negative charge is carried by `sp^(3)` hybridized `C` atom. |
|