Which one of the following is true for any diprotic acid, `H_(2)X`?A. `K_(a_(2))=K_(a_(1))`B. `K_(a_(2))gt K_(a_(1))`C. `K_(a_(2))lt K_(a_(1))`D. `K_(a_(2))=(1)/(K_(a_(1)))`

Which one of the following is true for any diprotic acid, `H_(2)X`?A.

1.	Which one of the following is true for any diprotic acid, `H_(2)X`?A. `K_(a_(2))=K_(a_(1))`B. `K_(a_(2))gt K_(a_(1))`C. `K_(a_(2))lt K_(a_(1))`D. `K_(a_(2))=(1)/(K_(a_(1)))`
Answer» Correct Answer - C `H_(2)X hArr H^(+)+HX^(-)(K_(a_(1)))` `HX^(-)hArr +X^(2-)(K_(a_(2)))` In Ist equation hydrogen ion is formed from neutral molecule whereas in Iind equation it comes from negatively charged species. Due to negative charge removal of proton is difficult. So, `K_(a_(1))gt K_(a_(2))`

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Which one of the following is true for any diprotic acid, `H_(2)X`?A. `K_(a_(2))=K_(a_(1))`B. `K_(a_(2))gt K_(a_(1))`C. `K_(a_(2))lt K_(a_(1))`D. `K_(a_(2))=(1)/(K_(a_(1)))`

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