One litre hard water contains 12.00 mg Mg^2+ milli equivalent of washing soda required to remove its hardness is

Question: One litre hard water contains 12.00 mg Mg^2+ milli equivalent of washing soda required to remove its hardness is

(a) 1

(b) 12.15

(c) 1 x 10^-3

(d) 12.15 x 10^-3

Correct Answer: (a) 1

Question: One litre hard water contains 12.00 mg Mg^2+ milli equivalent of washing soda required to remove its hardness is (a) 1 (b) 12.15 (c) 1 x 10^-3 (d) 12.15 x 10^-3

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