Equilibrium Question 31

Question: Dissociation of $ H_3PO_4 $ takes place in following steps [CPMT 1976; NCERT 1987]

Options:

A) 1

B) 2

C) 3

D) 4

Show Answer

Answer:

Correct Answer: C

Solution:

$ H_3PO_4 $ $\rightarrow$ $ {H^{+}}+H_2PO_4^{-} $

$ H_2PO_4^{-} $ $\rightarrow$ $ {H^{+}}+HPO_4^{-,-} $

$ HPO_4^{-,-} $ $\rightarrow$ $ {H^{+}}+PO_4^{-,-,-} $



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