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     EduGorilla 
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    Directions: In the table, 1 litre each of the two solutions X and Y is given and to coagulate each one of them, the number of millimoles of NaCl and MgCl2 are also shown.

    In litre X Y
    NaCI (mmol) 51 46
    MgCI2 (mmol) 71 23

    From the options, choose the value which is not reasonable for the amount of other salt required to cause precipitation.

    Options :-

    1. X will be precipitated by 25 mmol of Na2SO4.
    2. Y will be precipitated by 60 mmol of MgSO4.
    3. X will be precipitated by 90 mmol of AlCl3.
    4. Y will be precipitated by 20 mmol of AlCl3.
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