A cryogenic storage chamber is maintained at a temperature of −120∘C-120^\circ\text{C}−120∘C. The table shows the melting points and boiling points of four substances.
| Substance | Melting point (∘C^\circ\text{C}∘C) | Boiling point (∘C^\circ\text{C}∘C) |
|---|---|---|
| Oxygen | -219 | -183 |
| Ethane | -183 | -89 |
| Krypton | -157 | -153 |
| Ethanol | -114 | 78 |
Which statement is correct at the temperature of the cryogenic chamber?
Krypton is a liquid and ethanol is a liquid.
Oxygen is a gas and ethane is a liquid.
Ethane is a gas and krypton is a liquid.
Ethanol is a liquid and oxygen is a solid.
27 exam-style questions on OCR GCSE Chemistry The particle model. Each one has a worked solution and a mark scheme showing where the marks go.