Assertion : `Al^(3+)` ions have greater precipitating power for `As_(2)S_(3)` than `N_(a)^(+)` ions. Reason : `As_(2)S_(3)` sol is a negatively charge
Assertion : `Al^(3+)` ions have greater precipitating power for `As_(2)S_(3)` than `N_(a)^(+)` ions.
Reason : `As_(2)S_(3)` sol is a negatively charged sol.
A. If both assertion and reason are correct and reason is correct explanation for assertion.
B. If both assertion and reason are correct but reason is not correct explanation for assertion.
C. If assertion is correct but reason is incorrect.
D. If assertion and reason both are incorrect.
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Correct Answer - B
Correct explanation. Greater the magnitude of charge on the active ion. More is its coagulating value.
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