InterviewSolution
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InterviewSolution
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For poly basic acid , the dissociation constant have a different valves for each step. `H_(3)AhArrH^(+)+A,Keq=Ka_(1)` `H_(2)AhArrH^(+)+A^(-2),Keq=Ka_(2)` `HA^(2)hArrH^(+)+A^(3-),Keq=Ka_(3)` What is the observed trend of dissociation constant im successive stages ?A. `K_(a_(1))gtK_(a_(2))gtK_(a_(3))`B. `K_(a_(1))=K_(a_(2))=K_(a_(3))`C. `K_(a_(1))ltK_(a_(2))ltK_(a_(3))`D. `K_(a_(1))=K_(a_(2))+K_(a_(3))` |
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Answer» Correct Answer - A The value of dissociation constants for successive stages decrease. |
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