MCQ practice · SSC Chemistry Board questions · Chapter 5: Chemical Bond
In which is the van der Waals force the lowest?
Think it through first, then pick an option.
- a S₈
- b O₂
- c I₂
- d H₂O
Answer and explanation
Correct answer: b O₂
Correct. O₂ is a gas, and between gaseous covalent molecules the force is hardly there.
Why the other options are wrong
- a S₈: S₈ is a solid; the van der Waals force is most effective in solid covalent substances.
- c I₂: I₂ is a solid, so the force is comparatively large.
- d H₂O: H₂O is a liquid; a liquid has the force, more than a gas.
More board questions on this topic
- Which has a triple bond?
- In which of these compounds is the van der Waals force the weakest?
- Which of these elements has a triple bond?
- At normal temperature and pressure, which has the weakest van der…
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