defence exam Army Havildar SAC Mock Test Series 2025 Chemistry Surface Chemistry

Which is correct order of flocculating power in the coagulation of As2S3 Sol?

1
\(\mathrm{PO}_{4}^{3-}>\mathrm{SO}_{4}^{2-}>\mathrm{Cl}^{-}\)
2
Al3+ > Ba2+ > Na+
3
Al3+ < Ba2+ < Na+
4
\(\mathrm{PO}_{4}^{3-}<\mathrm{SO}_{4}^{2 -}<\mathrm{Cl}^{-}\)
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