Match the correct formula to each of the following acids.

1. Phosphoric acid

A. [tex] H_3PO_4 [/tex]
B. [tex] H_3PO_3 [/tex]
C. [tex] H_3P [/tex]

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Answer :

Certainly! Let's determine the correct formula for Phosphoric acid from the given options.

### Step-by-Step Solution:

Options given:
1. H₃PO₄
2. H₃PO₃
3. H₃P

Identifying the correct formula:
- Phosphoric acid is a well-known compound used in various applications including food preservatives, fertilizers, and detergents.
- The chemical formula for Phosphoric acid is specifically defined based on its chemical structure.

Let's evaluate the given options:

1. H₃PO₄: This is the common chemical formula assigned to Phosphoric acid.
2. H₃PO₃: This is actually the formula for Phosphorous acid, not Phosphoric acid. While both acids contain phosphorus, they differ in the number of oxygen atoms.
3. H₃P: This formula is not standard for either Phosphoric acid or any common phosphorus-containing acid. Typically such a simplified formula does not represent any known acid in common chemical nomenclature.

Selection:
Given these analyses, the correct formula for Phosphoric acid is:

H₃PO₄

### Conclusion:
Phosphoric acid has the chemical formula H₃PO₄. This aligns with standard chemical nomenclature and the properties of well-known compounds.