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Acids and bases - class-XI
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Ist & IInd dissociation const. for oxalic acid is $K _{1}$ and $K _{2}$ which is right statement is :
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A
$K _{2}$ is $\frac{1}{1000}$ time than $K _{1}$
💡 Explanation:
Oxalic acid H2C2O4 is a diprotic acid. The first dissociation (H2C2O4 → HC2O4- + H+) is easier than the second (HC2O4- → C2O4²- + H+) because removing H+ from a negatively charged species (HC2O4-) is harder. K2 is typically 1/1000 of K1.