HPO3 is the chemical formula of ______________ phosphoric acid?
Correct answer: C. Meta
- A. Pyro
- B. Ortho
- C. Meta
- D. None of these
Explanation
HPO3 is the empirical formula of metaphosphoric acid, formed by condensation of orthophosphoric acid with loss of water. Pyrophosphoric acid instead has the formula H4P2O7.
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