Question

Hard water passed only through anion exchange resin will have ph

Answer 1

Answer is High.

Explanation of the topic:

Usually, first step in the process is carried out through the cation exchange resin and then via anion exchange resin.

But, if hard water is passed only via anion exchange resin, all cations are modified as hydroxides. Due to the presence of hydroxides, pH value becomes high.

Finally, the precipitates of hydroxide, say, Ca(OH)2 blocks the pipes of the exchanger.