P-Block Elements Ques 247
Question: Dissociation of $ H_3PO_4 $ occurs in following stages
[CPMT 1976]
Options:
A) 1
B) 2
C) 3
D) 4
Show Answer
Answer:
Correct Answer: C
Solution:
$ H_3PO_4{{H}^{+}}+H_2PO_4^{-} $ ⇌ $ {{H}^{+}}+H_2PO_4^{-} $ $ H_2PO_4^{-} $ ⇌ $ {{H}^{+}}+HPO_4^{2-} $ $ HPO_4^{2-} $ ⇌ $ {{H}^{+}}+PO_4^{3-} $