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The reaction 4Na + O₂ → 2Na₂O forms sodium oxide through:

The reaction 4Na + O₂ → 2Na₂O forms sodium oxide through:
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Decomposition reaction
  • B Neutralization reaction
  • C Combination reaction
  • D Precipitation reaction
Correct Answer: Option C
Explanation:
Sodium combines directly with oxygen to form a single product, sodium oxide. This makes it a combination reaction.

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