Electrochemistry match

COLUMN - I COLUMN -II

(A) If S.O.P of a substance is (P) Oxiadtion of substance is
exists b/w -1.23 to -0.81 V not possible

(B) If S.O.P of substance is (Q) Possible only in acidic
exists b/w -0.81 V to -0.40 V medium

(C) If S.O.P is less than -1.23 V (R) Possible only in acidic
medium

(D) If S.O.P is greater than (S) Oxidation easily takes
- 0.40 V place