6-2.Equilibrium-II (Ionic Equilibrium)
hard

निम्नलिखित अभिक्रियाओं $(a)$,$(b)$ और $(c)$ के लिए आयनन स्थिरांक क्रमशः $K _{ a _1}, K _{ a _2}$ एवं $K _{ a _3}$ हैं:-

$(a)$ $H _2 C _2 O _4 \rightleftharpoons H ^{+}+ HC _2 O _4^{-}$

$(b)$ $HC _2 O _4^{-} \rightleftharpoons H ^{+}+ HC _2 O _4^{2-}$

$(c)$ $H _2 C _2 O _4 \rightleftharpoons 2 H ^{+}+ C _2 O _4^{2-}$

$K _{ a _1}, K _{ a _2}$ एवं $K _{ a _3}$ में सम्बन्ध है :-

A

$K_{ a _{3}}= K _{ a _{1}}+ K _{ a _{2}}$

B

$K_{a_{a_{3}}}=K_{a_{1}}-K_{a_{2_{2}}}$

C

$K _{ a _{1}}= K _{ z _{1}} / K _{ s _{2}}$

D

$K _{ a _{3}}= K _{ a _{1}} \times K _{ s _{2}}$

(JEE MAIN-2022)

Solution

$H _{2} C _{2} O _{4} \rightleftharpoons H ^{+}+ HC _{2} O _{4}^{-} K _{ a _{1}}$

$H _{2} C _{2} O _{4}^{-} \rightleftharpoons H ^{+}+ C _{2} O _{4}^{2-} K _{ a _{2}}$

$H _{2} C _{2} O _{4} \rightleftharpoons 2 H ^{+}+ C _{2} O _{4}^{2-} K _{ a _{1}}= K _{ a _{1}} \times K _{ a _{2}}$

Standard 11
Chemistry

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