A) Less efficient as it exchanges only anions
B) More efficient as it can exchange only cations
C) More efficient as it can exchange both cations as well as anions
D) Less efficient as the resins cannot be regenerated
Correct Answer: C
Solution :
[c] Nowadays hard water is softened by using synthetic resins method. This method is more efficient than zeolite process as it can exchange both cations as well as anions.
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