Question:
The following data is obtained for coagulating a positively charged sol in 2 hours:
The following data is obtained for coagulating a positively charged sol in 2 hours:
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To determine the coagulating value of an electrolyte, observe the concentration at which precipitation starts to occur.
Updated On: May 14, 2025
- \( 7 \times 10^{-5} \)
- \( 7 \times 10^{-2} \)
- \( 5 \times 10^{-2} \)
- \( 9 \times 10^{-2} \)
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The Correct Option is B
Solution and Explanation
The coagulating value of electrolyte is the concentration of the electrolyte which causes precipitation of sol. From the given data, the sol starts precipitating at a concentration of \( 7 \times 10^{-5} \) mol L\(^{-1}\). Hence, the coagulating value of the electrolyte is \( 7 \times 10^{-5} \).
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