In chemical terms, what are alums used for purifying water for drinking purposes? |
|
|||
(a) |
Hydrated chlorides |
(b) |
Double nitrate |
|
(c) |
Double sulphates |
(d) |
Nitrates of aluminium |
In chemical terms, what are alums used for purifying water for drinking purposes? |
|
|||
(a) |
Hydrated chlorides |
(b) |
Double nitrate |
|
(c) |
Double sulphates |
(d) |
Nitrates of aluminium |