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^{-,-,-} $
