Multiple choice general knowledge science & technology

H2O is liquid, but H2S is what?

  1. GAS

  2. SOLID

  3. LIQUID

  4. NONE
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A Correct answer
Explanation

H2S is a gas at room temperature due to weak intermolecular forces, while H2O is a liquid because of strong hydrogen bonding between water molecules. This difference occurs because sulfur is larger and less electronegative than oxygen.

AI explanation

Hydrogen sulfide (H2S) is a gas at room temperature, unlike water (H2O) which is a liquid, because sulfur's weaker and less directional hydrogen bonding compared to oxygen results in much weaker intermolecular forces holding H2S molecules together. This gives H2S a much lower boiling point, so it stays gaseous under normal conditions.

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