Precipitation of Al3+ (aq) as Al(OH)3 by CO2 shows that :

CO2 + H2O ⇋ CO32- + 2H+2Al3+ + 3CO32- + 3H2O → 2Al(OH)3 + 3CO2

p-Block elementsHard

Question

Precipitation of Al³⁺ (aq) as Al(OH)₃ by CO₂ shows that :

A.the acidic property is very weak

B.the acidic property is very strong

C.the basic property is very strong

D.the basic property is very weak

CO₂ + H₂O ⇋ CO₃^2- + 2H⁺
2Al³⁺ + 3CO₃^2- + 3H₂O → 2Al(OH)₃ + 3CO₂

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