What is the oxidation state of chromium in the product when $\mathrm { K } _ { 2 } \mathrm { Cr } _ { 2 } \mathrm { O } _ { 7 }$ reacts with acidified KI (A) + 6 (B) + 3 (C) + 4 (D) + 5
What is the oxidation state of chromium in the product when $\mathrm { K } _ { 2 } \mathrm { Cr } _ { 2 } \mathrm { O } _ { 7 }$ reacts with acidified KI
(A) + 6
(B) + 3
(C) + 4
(D) + 5