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In zeolites & synthetic resin method ...

In zeolites & synthetic resin method which will be more efficient in removing premanent hardness of water :

A

Synthetic resin method as it exchange only cation

B

Zeolite resin method as it exchange only cation

C

Synthetic resin method as it exchange only anion.

D

Synthetic resin is harmful for nature

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The correct Answer is:
A
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