Saved Bookmarks
| 1. |
Which of the follwing represents the decreasing order of K_(a) values ? |
|
Answer» `(ii)gt(i)gt(iii)gt(IV)` After releasing `H^(+)` from (ii) group , it forms a more STABLE RESONATING structure of carboxylate ion . In case of (i), the anion formed after release of `H^(+)` is more stable due to presence of `e^(-)` withdrawing `NO_(2)` in benzene ring . In(iii), phenoxide ion formed after release of `H^(+)` is more stable in comparison to acetylide ion of group (iv) which is formed after releasing `H^(+)` fromfrom (iv)so ACIDIC ORDER or `K_(a)` is `(ii)gt(i)gt(iii)gt(iv)` |
|