Anion with the highest coagulating power for a positively charged sol

1. A.
   $\text{Fe(CN)}_6^{4-}$
2. B.
   $\text{Cl}^-$
3. C.
   $\text{SO}_4^{2-}$
4. D.
   $\text{PO}_4^{3-}$

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1. A.
   ${SO}_{4}^{2 -}$
2. B.
   ${Cl}^{-}$
3. C.
   ${PO}_{4}^{3 -}$
4. D.
   $\left\lbrack Fe(CN)_{6} \right\rbrack^{4 -}$

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1. A.
   $\mathrm{Cl^-}$
2. B.
   $[\mathrm{Fe(CN)_6}]^{4-}$
3. C.
   $\mathrm{PO_4^{2-}}$
4. D.
   $\mathrm{SO_4^{2-}}$

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