Calgon is a substance which is used to remove the hardness of water. The formula of calgon is :-
A. Na2[Na4(PO3)6]
B. Na2Al2Si2O8
C. FeSO4(NH4)2. SO4. 6H2O
D. Na2S2O3. 5H2O
Answer:A
Calgon is a substance which is used to remove the hardness of water. The formula of calgon is :-
A. Na2[Na4(PO3)6] B. Na2Al2Si2O8 C. FeSO4(NH4)2. SO4. 6H2O D. Na2S2O3. 5H2O