O-LevelChemistryStoichiometry5070/11 · May/June 2017 · Q81 Mark
Which statement correctly explains why chlorine, Cl2, at 40°C diffuses more slowly than neon, Ne, at 20 °C?
AChlorine has a relative molecular mass of 71 whilst neon has a relative atomic mass of 20.
BChlorine is at a higher temperature than neon.
CChlorine is diatomic and neon is monatomic.
DChlorine is more reactive than neon.
✓ Correct answer
A: Chlorine has a relative molecular mass of 71 whilst neon has a relative atomic mass of 20.
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