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General Knowledge · Q44

Practice

Competitive Exams · General Knowledge · question 44

Q44

The method that cannot be used for removing permanent hardness of water is

A.
adding sodium carbonate
B.
distillation
C.
adding caustic soda
D.
boiling
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
Permanent hardness of water cannot be removed by simple physical methods like boiling, filtering and distillation.