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\(^{+2}\)

There is an explanation video available below.

• Which is the odd one out? And why? A. Air B. Urine C. Brass D. Sand? Answer this

  8 Answers   ·   Chemistry   ·   2 years ago
• If f(g)(x)=x² 2x 1 and f(x)=x², find g(x)? Answer this

  0 Answers   ·   Mathematics   ·   4 minutes ago
• In alternating current circuit at resonance, the angel of lead or lag is A. π° B. (π)/2° C. (π)/3° D.... Answer this

  6 Answers   ·   Physics   ·   4 years ago