Unit 3 · Stoichiometry

Question Bank

Cambridge IGCSE Chemistry 0620 · 30 questions

Q2Stoichiometry

The formula of sodium oxide is

(a)NaO

(b)NaO₂

(c)Na₂O

(d)Na₂O₂

Correct answer: (c) Na₂O

Explanation: Na⁺ and O²⁻.

Related lesson