The oxidation state of Cr in K2Cr2O7 is? by Sunday | Oct 11 | Chemistry JAMB | 0 comments A. +7 B. +6 C. +5 D. 4 Correct Answer: Option B = +6 Users Also Read These:What is the organic product of the reaction of…If acidified Potassium Dichromate(VI) (K2Cr2O7) acts…The oxidation state of oxygen in tetraoxosulphate…Ethanol reacts with excess acidified K2Cr2O7 to produce?The oxidation state of oxygen on tetraoxosulphate iv…