Question

The suitable method to deionize water is:

• A. Synthetic resin
• B. Permutit method
• C. Calgon
• D. Clark's Method

Answer 1

The correct option is A

Synthetic resin

The explanation for the correct option:

A: Synthetic Resin

• Tap water, spring water, or distilled water are all used to create deionized water by passing them through an electrically charged resin.
• Typically, a mixed ion exchange bed made up of resins that are both positively and negatively charged is used.
• ${\mathrm{H}}_2\mathrm{O}$ is created when ${\mathrm{H}}^{+}$ and ${\mathrm{OH}}^{-}$ in the resins and cations and anions in the water exchange (water).
• And Synthetic Resin is used for deionizing rainwater.

B: Permutit method

• The Permutit procedure is the method used to filter ${\mathrm{Ca}}^{2+}$containing hard water through Zeolite sand.
• Zeolite from an artificial source is called permutit.

C: Calgon

• The hard water is softened with this technique.
• Calgon, also known as Sodium-hexa-meta-phosphate ${\left({\mathrm{NaPO}}_3\right)}_6$, is utilised in this technique to ionise the water.

D: Clark's Method

• Hard water is softened with $\mathrm{Ca}{\left(\mathrm{OH}\right)}_2$ in Clark's water softening technique (slaked lime).
• Clark's reagent is calcium hydroxide. By turning bicarbonates into carbonate, it softens the water.
• Calcium hydroxide is used in Clark's method to soften water (lime).

Therefore, Option A (Synthetic Resin) is the correct option.