Social & Preventive Medicine General 90413e5a

Both temporary and permanent hardness of water can be removed by:

Boiling

Adding lime

Adding sodium carbonate

None of the above

High-Yield Explanation

Temporary hardness can be removed by: Boiling Adding lime Adding sodium carbonate Permutit process Permanent hardness can be removed by Adding sodium carbonate Base exchange resins Ref: Park 21st edition page: 672.

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Both temporary and permanent hardness of water can be removed by:

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