Among PbS, CdS, As₂S3, CuS, HgS, Ag₂S, NiS, COS, Bi₂S3,

Last updated: 7/31/2022

Among PbS, CdS, As₂S3, CuS, HgS, Ag₂S, NiS, COS, Bi₂S3, SnS₂, ZnS a is number of black colour sulphide b is number of white colour sulphide c is number of yellow colour sulphide a²-b/c Find the value of