Which of the following compounds is an example of an electrovalent bond?

JAMB Chemistry 2023 65 views

Which of the following compounds is an example of an electrovalent bond?

  1. CO₂ (carbon dioxide)
  2. H₂O (water)
  3. NaCl (sodium chloride) ✓
  4. CH₄ (methane)

Explanation

NaCl has an electrovalent (ionic) bond. Sodium gives one electron to chlorine. This creates Na⁺ and Cl⁻ ions that attract.

CO₂, H₂O, and CH₄ all share electrons. They have covalent bonds, not ionic bonds.

Remember: Electrovalent bonds form between metals and non-metals. Electrons transfer completely.

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