1. Iron pyrites
2. Galena
3. Cinnabar
4. Bauxite
Cinnabar
1. Gangue + Flux = Slag
2. Gangue + Slag = Flux
3. Slag + Flux = Gangue
4. All are correct
Gangue + Flux = Slag
1. Fe and Ni
2. Fe, Cr and Ni
3. Cu and Sn
4. Cu and Ni
Fe and Ni
1. Gypsum
2. Limestone
3. Dolomite
4. Chalk
Dolomite
1. Leaching
2. Levigation
3. Liquation
4. Gravity separation
Levigation
1. Al
2. Pb
3. Ag
4. Zn
Al
1. Al
2. Pb
3. Ag
4. Zn
Al
1. Flux and coke
2. Metal and flux
3. Coke and metal oxide
4. Flux and impurities
Flux and impurities
1. Blast furnace
2. Electric furnace
3. Bessemer convertor
4. Reverberatory furnace
Reverberatory furnace
1. Zn
2. Ag
3. Fe
4. Cu
Fe