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Balbeer M.
's Polls
GK
The method that cannot be used for removing permanent hardness of water is
adding sodium carbonate
0 votes (0%)
adding sodium carbonate
distillation
1 vote (100%)
distillation
adding caustic soda
0 votes (0%)
adding caustic soda
boiling
0 votes (0%)
boiling
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Wolmal
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