Which of the following statements explains why tetraoxosulphate (IV) acid is regarded as a strong acid?

A. Tetraoxosulphate (IV) acid is dibasic
B. the acid is concentrated
C. the acid is completely ionized in aqueous solution
D. tetraxosulphate (IV) ions are very reactive
E. the acid is highly corrosive

Correct Answer:

Option C – the acid is completely ionized in aqueous solution