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Which of the following will be the least...

Which of the following will be the least effective in the coagulation of `Fe(OH)3` salt ?

A

`Mg3(PO4)2`

B

`K2CrO4`

C

NaCl

D

`k4[Fe(CN)6]`

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VMC MODULES ENGLISH-SURFACE CHEMISTRY-LEVEL-1
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