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Arrange the following substances in orde...

Arrange the following substances in order of increasing ability to coagulate i) negative change sol and ii) a positively change sol: `X) ZnSO_4, Y) AlCl_3` and `Z) Na_3PO_4`.

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The correct Answer is:
In case of negative sol `Y > X > Z`, in case of positive sol `Z > X > Y`
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AAKASH SERIES-SURFACE CHEMISTRY-EXERCISE - 5.2
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