Among the chemical species :
(i) H2CO3
(ii) \(HCO_3^-\)
iii) \(CO_3^{2-}\)
(iv) Cl-
the pH of natural waters is controlled mainly by
1
Only (i) and (ii)
2
Only (i), (ii) and (iii)
3
Only (ii) and (iv)
4
(i), (ii), (iii) and (iv)
Among the chemical species :
(i) H2CO3
(ii) \(HCO_3^-\)
iii) \(CO_3^{2-}\)
(iv) Cl-
the pH of natural waters is controlled mainly by