Choose the best answer answer:
1.
| Assertion (A) | In paper chromatography, the solvent moves upward through the paper. |
| Reason (R) |
All components of the mixture travel with the same speed.
|
2.
| Assertion (A) | Fractional distillation is preferred over simple distillation for separating ethanol and water. |
| Reason (R) |
Ethanol and water have boiling points that differ by less than 25°C.
|