Chemistry, asked by areena29941, 8 months ago

Why MgCl2 is a better coagulant than KCl for As3s3

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Answered by AbdulHafeezAhmed

In order to coagulate, there must be more ions. There will be two ions when KCl dissociates (K⁺ and Cl⁻). But there will be three ions when MgCl₂ dissociates (Mg²⁺ and 2Cl⁻), also, there will be more charge on Mg (Mg²⁺) than when KCl dissociates.

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