AP EAMCET Engineering 17 Sep 2020 Shift 2 Paper

A beaker containing a mixture of liquid A and liquid B, in equilibrium with each other, is cooled very slowly. If point ‘D’ on the graph is where solidification of both liquids is complete, how many different phases coexist along line ‘CD’ if freezing point of liquid B and liquid A are −25°C and −78°C respectively.