Ionic EquilibriumHard

Question

When excess oxalic acid is added to CaCl2 solution, CaC2O4 is precipitated and the solution still contains some unprecipitated Ca2+. The reason is

Options

A.CaC2O4 is a soluble salt.
B.oxalic acid does not ionize at all.
C.the solution becomes acidic and hence, ionization of H2C2O4 is suppressed.
D.the solution becomes basic and hence, ionization of H2C2O4 increases.

Solution

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