Multiple choice general knowledge science & technology

The boiling temperature of water is much higher than methane because water molecules are:

  1. composed of fewer atoms

  2. more massive

  3. smaller

  4. polar
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water has polar molecules with partial positive and negative charges due to oxygen's electronegativity. This allows strong dipole-dipole interactions and hydrogen bonding, requiring more energy (higher temperature) to overcome. Methane is nonpolar with weaker intermolecular forces.

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