Which of the following is a tetrabasic acid?
A. Orthphosphric acid
B. Hypohosphorus acid
C. Metaphosphoric acid
D. Pyrocphoshoric acid
A. Orthphosphric acid
B. Hypohosphorus acid
C. Metaphosphoric acid
D. Pyrocphoshoric acid
Correct Answer – D
Pyrophosphoric acid is tetra-basic with four OH bond.
`underset(“Pyrophosphoric acid”)(HO-overset(O)overset(||)underset(OH)underset(|)(P)-O-overset(O)overset(||)underset(OH)underset(|)(P)-OH)`