1. Al
2. Fe
3. Mg
4. Ca
Mg
1. Matallic luster
2. Small size
3. Unpaired d – electrons
4. Tendency to form complexes
Unpaired d – electrons
1. Siderophil
2. Atmophil
3. Lithophil
4. Chalcophil
Lithophil
1. at cathode
2. at anode
3. in the electrolyte
4. in anode mud
at cathode
1. Al
2. Cu
3. Zn
4. Ag
Ag
1. Ag2S
2. Ag2b2S3
3. AgCl
4. Ag2S
Ag2b2S3
1. CaO
2. Silica
3. Lime stone
4. Magnesite
Silica
1. Gold
2. Copper
3. Iron
4. Manganese
Gold
1. Cu and Pb
2. Zn and Hg
3. Cu and Al
4. Fe and Pb
Cu and Pb
1. Copper
2. Nickel
3. Iron
4. Zinc
Nickel