Solution:
Polyphosphates (e.g., sodium hexa metaphosphate) form soluble complexes with cations such as and so they are used as water softening agents.
Choose the correct statement:
The reason for use of polyphosphates as water softening agents is, that
Polyphosphates (e.g., sodium hexa metaphosphate) form soluble complexes with cations such as and so they are used as water softening agents.