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 strong hydrogen bonding due to its polar nature (oxygen is electronegative, creating partial charges), requiring more energy to break these bonds and boil. Methane is nonpolar with only weak London dispersion forces, explaining its much lower boiling point.

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