In the removal of water hardness, permutit is regenerated with a strong solution of
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Correct Answer: Option
Explanation:
Permutit is also known as zeolite. When a sample of hardwater is percolated through a bed of powdered permutit the following base exchange reaxtion takes place making the sample of water soft.
 2Na-permutit + Ca\(^{+2}\) → Ca (permutit)2 + 2Na\(^{+}\).
 The ions Ca\(^{+2}\) causing hardness to water are absorbed by permutit releasing releasing Na\(^{+}\) and hardness is removed. When all the Na site in permutit is replaced by Ca\(^{+2}\)
Permutit is also known as zeolite. When a sample of hardwater is percolated through a bed of powdered permutit the following base exchange reaxtion takes place making the sample of water soft.
 2Na-permutit + Ca\(^{+2}\) → Ca (permutit)2 + 2Na\(^{+}\).
 The ions Ca\(^{+2}\) causing hardness to water are absorbed by permutit releasing releasing Na\(^{+}\) and hardness is removed. When all the Na site in permutit is replaced by Ca\(^{+2}\)