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NEETChemistryHydrogen

What is the role of hydroxide ions (OH–) in the anion exchange process?

Options

  1. ATo neutralize the H+ ions released in the cation exchange process
  2. BTo increase water hardness
  3. CTo precipitate hardness ions
  4. DTo remove sodium ions

Correct answer

A. To neutralize the H+ ions released in the cation exchange process

Step-by-step solution

Hydroxide ions (OH–) in the anion exchange process neutralize the H+ ions released in the cation exchange process, maintaining the overall balance of ions in the water treatment process.

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