When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts :
When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts :
A. Both the sols are precipitated simultaneously
B. This process is called mutual coagulation
C. They becomes positively charged colloids
D. They become negatively charged colloids
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