Ionic EquilibriumHard
Question
Three reactions involving H2PO4- are given below :
(i) H3PO4 + H2O → H3O+ + H2PO4-
(ii)H2PO4- + H2O → HPO42- + H3O+
(iii) H2PO4- + OH- → H3PO4 + O2-
In which of the above does H2PO4- act as an acid ?
(i) H3PO4 + H2O → H3O+ + H2PO4-
(ii)H2PO4- + H2O → HPO42- + H3O+
(iii) H2PO4- + OH- → H3PO4 + O2-
In which of the above does H2PO4- act as an acid ?
Options
A.(ii) only
B.(i) and (ii)
C.(iii) only
D.(i) only
Solution
Only in reaction (ii) H2PO4- acids as ′acid′.
Create a free account to view solution
View Solution FreeMore Ionic Equilibrium Questions
The pH of an acid buffer can be raised by 2 units by...n-coproic acid C5H11COOH found in coconut and palm oil is used in making artificial flavours and it has solubility in wa...Select the correct statement :-...Which statement is correct ?...or the equibrium CH3COOH(eq.) + H2O(l) ⇋ CH3COO-(aq.) + H3O+ (aq) ?Ka = 1.70 × 10-4 at 298 K. What is the eff...