Match the following: List - I (I) CrO4^2- (II) Cr2O7^2- (III) CrO5 (IV) CrO8^3- List - II (P) Contains peroxo linkage (Q) Unstable compound (R) Cr in +VI state | AITS & Test Series β€” Chem-Mantra | Chem-Mantra