Environment & Ecology · Environmental Engineering
Permanent hardness of water can be removed by which of the following methods? (a) Lime-soda process (b) Boiling (c) Demineralization process (d) Base-exchange process
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(a), (c) and (d) only✓
- 2All of the above
- 3(b) only
- 4(a) only
Correct answer
(a), (c) and (d) only
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