The experimentally determined flocculation values (in ) of three specific electrolytes X, Y, and Z for a standard arsenic sulphide () sol are , , and , respectively. What must be conclusively deduced

Question

The experimentally determined flocculation values (in $	ext{millimoles L}^{-1}$) of three specific electrolytes X, Y, and Z for a standard arsenic sulphide ($As_2S_3$) sol are $52$, $0.69$, and $0.093$, respectively. What must be conclusively deduced about the relative coagulating powers of these three electrolytes?

Prashant Kotian · Accepted Answer

Correct answer: B. The flocculation value is defined as the minimum millimoles of electrolyte per litre required to cause precipitation. Therefore, the actual coagulating power of an electrolyte is strictly inversely proportional to its flocculation value. Since the required amounts are , electrolyte Z is the most highly effective. The coagulating power order is .

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