How many oxygen atoms are there in a molecule of sodium peroxide?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Two.
- A molecule of sodium peroxide has the chemical formula Na₂O₂, which means it contains 2 oxygen atoms per molecule.
- In this compound, the two oxygen atoms are bonded together as a peroxide ion (O₂²⁻), and the structure consists of two sodium ions (Na⁺) paired with one peroxide ion. This arrangement is consistent across all references to sodium peroxide’s chemical structure.