The most important pollutant in leather industry is :
AZinc
BCadmium
CIron
DAluminium
AZinc
BCadmium
CIron
DAluminium
Related Questions:
Below are two chemical equations:
Zn (s) + CuSO (aq) → ZnSO (aq) + Cu (s)
Pb (s) + CuCl (aq) → PbCl (aq) + Cu (s)
Why does copper get separated from its compound form in both the cases?