50 cm3 of 0.04 M K2Cr2O7 in acidic medium oxidizes a sample of H2S gas to sulfur. The volume of 0.03 M KMnO4 required to oxidize the same amount of H2S gas to sulfur in acidic medium is?

Question

50 cm³ of 0.04 M K₂Cr₂O₇ in acidic medium oxidizes a sample of H₂S gas to sulfur. The volume of 0.03 M KMnO₄ required to oxidize the same amount of H₂S gas to sulfur in acidic medium is?

80 cm³