General Knowledge - Chemistry - Discussion
Discussion Forum : Chemistry - Section 1 (Q.No. 43)
43.
The method that cannot be used for removing permanent hardness of water is
Discussion:
11 comments Page 2 of 2.
Nishu tyagi said:
1 decade ago
It should be sodium carbonate because (Na2CO3) washing soda is a salt & is usedto remove permanent hardness of water.
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