JEE Main & Advanced
Chemistry
Metallurgy / धातुकर्म
Question Bank
Numerical Value Type Questions - s-Block, p-Block & Metallurgy
question_answer
How many of the following ore can be concentrated by leaching process \[PbS\], \[ZnS\] , \[A{{l}_{2}}{{O}_{3}}\] , \[A{{g}_{2}}S\] , \[F{{e}_{2}}{{O}_{3}}\], \[Sn{{O}_{2}}\] , \[CuFe{{S}_{2}}\]