Which of the substances in the table below will be a solid at room temperature (25∘C25^\circ\text{C}25∘C) but will melt when heated in a water bath at 75∘C75^\circ\text{C}75∘C?
| Substance | Melting point in ∘C^\circ\text{C}∘C | Boiling point in ∘C^\circ\text{C}∘C |
|---|---|---|
| A | 141 | 482 |
| B | 43 | 181 |
| C | -11 | 140 |
| D | -95 | 56 |
Substance A
Substance B
Substance C
Substance D
84 exam-style questions on Edexcel GCSE Chemistry 3.1 States of matter, covering 3.1.1 The three states of matter and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.