Chemistry · May / June 2017 · Paper 11 · Question 8

Which statement correctly explains why chlorine, Cl_2, at 40 °C diffuses more slowly than neon, Ne, at 20 °C?

1. AChlorine has a relative molecular mass of 71 whilst neon has a relative atomic mass of 20.
2. BChlorine is at a higher temperature than neon.
3. CChlorine is diatomic and neon is monatomic.
4. DChlorine is more reactive than neon.

As printed in the paper