Question 29
Separation of MixturesIn the experiment below, ammonium chloride crystals deposit on the walls of the test tube is as a result of
- A.evaporation
- B.sublimation
- C.recrystalization
- D.fractional precipitation
Show the answer and explanation
Answer: B (sublimation)
Explanation
Heated ammonium chloride turns straight to vapour and then back to solid on the cooler part of the tube without melting: sublimation.