The leaving group is that functional group which is ejected with `overline e^, s` of the `sigma` -bond in a reaction. Better the leaving group, faster is the reaction. The relative leaving ability of the leaving group `X` in `(R - X)` is increased by : (i) The polarisability of `(R - X)` bond. (ii) The stability of `X^(Ө)`. (iii) The degree of stabilisation through solvation of `X`. (iv) The strength of `(R - X)` bond. The leaving group tendency is also called fugacity. Which one of the followingd has the highest fugacity ?A. Tosylate `(overset (Ө) O Ts)`B. MesylateC. Triflate `(F_3 C - SO_3^(Ө))`D. All are equal

The leaving group is that functional group which is ejected with `over

1.	The leaving group is that functional group which is ejected with `overline e^, s` of the `sigma` -bond in a reaction. Better the leaving group, faster is the reaction. The relative leaving ability of the leaving group `X` in `(R - X)` is increased by : (i) The polarisability of `(R - X)` bond. (ii) The stability of `X^(Ө)`. (iii) The degree of stabilisation through solvation of `X`. (iv) The strength of `(R - X)` bond. The leaving group tendency is also called fugacity. Which one of the followingd has the highest fugacity ?A. Tosylate `(overset (Ө) O Ts)`B. MesylateC. Triflate `(F_3 C - SO_3^(Ө))`D. All are equal
Answer» Correct Answer - C It is the conjugate base (weak base) of the strongest acid `(F_3 C - SO_3 H)`.

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