A student's table of boiling points contains one value that was copied incorrectly.
| Noble gas | Boiling point in ∘C^\circ\mathrm{C}∘C |
|---|---|
| helium | -269 |
| neon | -246 |
| argon | -186 |
| krypton | -40 |
| xenon | -108 |
| radon | -62 |
Which noble gas has the incorrect value, and what is the most likely correct value?
xenon; about −30 ∘C-30\,^\circ\mathrm{C}−30∘C
radon; about −120 ∘C-120\,^\circ\mathrm{C}−120∘C
krypton; about −150 ∘C-150\,^\circ\mathrm{C}−150∘C
krypton; about −200 ∘C-200\,^\circ\mathrm{C}−200∘C
44 exam-style questions on Edexcel GCSE Chemistry 7.3 Group 0, covering 7.3.1 The noble gases. Each one has a worked solution and a mark scheme showing where the marks go.