The softening of hard water by synthetic ion-exchange resins is based on -

1. Increasing the lattice energy.

2. Physical separation.

3. Lowering the activation energy.

4. Exchange of cations and anions.

Subtopic:  Hard & Soft Water |
 88%
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The incorrect statement among the following options is:

1. K+ ions react with alkaline water and give K(OH)3

2. KCl is a salt of strong acid and strong base.

3. Al(OH)3 in alkaline condition gives [Al(OH)4]-

4. AlCl3 is a salt of strong acid and weak base.

Subtopic:  Hard & Soft Water |
 54%
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