Chemistry · May / June 2022 · Paper 12 · Question 2
5070Separation and purification
Which statement is correct?
- AA mixture of liquids with boiling points which differ by 35 °C can be separated by distillation.
- BLocating agents are needed to identify the colours present in ink.
- CThe desalination of sea water to produce pure water is achieved by fractional distillation.
- DThe Rf value of a dye in a chromatogram can be calculated using the formula: Rf = distance moved by solvent / distance moved by spot
As printed in the paper
Show the answer
Correct answer: A. A mixture of liquids with boiling points which differ by 35 °C can be separated by distillation.
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.