1.Which statement is incorrect about extractive metallurgy of copper?a.Matte chiefly consists of iron sulphide and some ferrous oxideb.Iron oxide impurity is removed as fusible slag FeSiO3\text{FeSiO}_3FeSiO3 during roastingc.Copper pyrite is concentrated by froth flotationd.Copper is obtained by self-reduction in the Bessemer converterLogin to continueOnly logged in users canattempt or see the solution.