A mixture of two solids, one subliming at 60°C and the other melting at 120°C, is best separated by which technique?
Sublimation separates the solid that sublimes at 60°C from the one that melts at 120°C, exploiting the phase change difference.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography