Permanent hardness of water is due to
a.
cl- and so4-2 of Mg and Ca
b.
cl and Na
c.
Co32-&Hco3- of ca and mg
d.
none
Answers
Answered by
0
Answer:
permanent hardness in water is due to presenece of calcium and magnessium chlorides and sulphates respectively.
option a is the right answer
Explanation:
hope the answer helps you ...
Answered by
0
Answer:
a) cl- and so4-2 of Mg and Ca
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