Chemistry 0620 · IGCSE · Ions and ionic bonds

Ions and ionic bonds — practice question

Potassium bromide and methanol are both compounds. However, their melting points are not the same. Which row is correct?

  • Amethanol; the attractive forces between oppositely charged ions is greater than the attractive forces between molecules
  • Bmethanol; the attractive forces between molecules is greater than the attractive forces between oppositely charged ions
  • Cpotassium bromide; the attractive forces between oppositely charged ions is greater than the attractive forces between molecules
  • Dpotassium bromide; the attractive forces between molecules is greater than the attractive forces between oppositely charged ions

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