Simple molecular structures
1 mark · NormalWhich statement describes the effect of increasing molecular mass on the boiling point of simple molecular substances?
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Correct option: Boiling point increases as molecular mass increases.
Common mistakes: choosing 'decreases' instead of 'increases'
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Marking points
B1 · 1 mark · Correct option selected: Boiling point increases as molecular mass increases.
Worked solution
The boiling point of simple molecular substances increases as molecular mass increases due to stronger intermolecular forces.