CO2+C⟶2COHg2+→I−HgI2→I−[HgIII4]2−CrO42−{\displaystyle {\ce {CO2+C->2COHg^{2}+->[I-]HgI2->[I-]{[Hg^{II}I4]^{2}-}CrO4^{2}-}}} This is a template pageThis is a template page