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  4. An arsenious sulphide sol carries a negative charge. The maximum precipitating power for this sol is possessed by

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Q. An arsenious sulphide sol carries a negative charge. The maximum precipitating power for this sol is possessed by

Surface Chemistry

Solution:

$As_2S_3$ sol. carries a negatively charged, so for coagulation, cations will be the effective ions, coagulation power of an effective ion increases with its charge.