Question:
Calgon used as a water softner, is
Calgon used as a water softner, is
Updated On: Jul 14, 2022
- $Na_2[Na_4(PO_3)_6]$
- $Na_4[Na_2(PO_3)_6]$
- $Na_4[Na_4(PO_4)_5]$
- $Na_4[Na_2(PO_4)_6]$
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The Correct Option is A
Solution and Explanation
Sodium polymetaphosphate is used to remove
the permanent hardness of water. The commercial
name of sodium polymetaphosphate is calgon
meaning calcium gone. The molecular formula of
calgon is $Na_2[Na_4(PO_3)_6].$
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