In comparison to the zeolite process for the removal of permanent hardness, the synthetic resins method is :

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Question:

In comparison to the zeolite process for the removal of permanent hardness, the synthetic resins method is :

  1. less efficient as it exchanges only anions

  2. more efficient as it can exchange only cations

  3. less efficient as the resins cannot be regenerated

  4. more efficient as it can exchange both cations as well as anions

Correct Option: , 4

Solution:

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