Q.
A. Cl- < F- < C2O42- < NO2- < CN-
B. CN- < C2O42- < Cl- < NO2- < F-
C. C2O42- < F- < Cl- < NO2- < CN-
D. F- < Cl- < NO2- < CN- < C2O42-
E. None of the above
Correct choice: D
Explanation: