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

JAMB Chemistry 2023 151 views
Source: JAMB · 2023

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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