A liquid, X, is separated by distillation from a mixture with the apparatus illustrated. While the distillation is taking place, the thermometer shows a temperature between $157\,^{\circ}\text{C}$ and $160\,^{\circ}\text{C}$. Which statement about liquid X is correct?
- AThe liquids in X may or may not be miscible (mix with each other).
- BX is a mixture that can be separated by distillation.
- CX must contain two liquids with boiling points $157\,^{\circ}\text{C}$ and $160\,^{\circ}\text{C}$.
- DX must have been obtained by the fractional distillation of petroleum (crude oil).