When a equimolar mixture of Cu₂S and CuS is titrated with Ba(MnO₄)₂ in acidic medium, the final product’s contains Cu²⁺, SO₂ and Mn²⁺. If the mol. wt. of Cu₂S, CuS and Ba(MnO₄)₂ are M1, M2 and M3 respectively then:
(A) eq. wt. of Cu₂S is M1/8
(B) eq. wt. of CuS is M2/6
(C) eq. wt. of Ba(MnO₄)₂ is M3/5
(D) Cu₂S and CuS both have same equivalents in mixture