One litre hard water contains 12.00 mg `Mg^(2+)` millieqivalent of washing soda required to remove its hardness isA. (a)1B. (b)12.15C. (c )`1xx10^(-3)`D. (d)`12.5xx10^(-3)`

One litre hard water contains 12.00 mg `Mg^(2+)` millieqivalent of was

1.	One litre hard water contains 12.00 mg `Mg^(2+)` millieqivalent of washing soda required to remove its hardness isA. (a)1B. (b)12.15C. (c )`1xx10^(-3)`D. (d)`12.5xx10^(-3)`
Answer» Correct Answer - A Meq of `Mg^(+2)`= Meq of washing soda `W/Exx1000=Mg^(+2), EW=24/2=12` `(12xx10^(-3))/12xx1000=1`

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One litre hard water contains 12.00 mg `Mg^(2+)` millieqivalent of washing soda required to remove its hardness isA. (a)1B. (b)12.15C. (c )`1xx10^(-3)`D. (d)`12.5xx10^(-3)`

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