Hello, can you please help me with these two questions below. I would appreciate it

2. A unknown compound (yellow solid) melting at 80C was suspected to be either 3 nitroacetophenone (MP=80C) or 4-nitroacetophenone (80C), both of which are yellow solids. Explain how you could determine the identity of the unknown compound, without using spectroscopy. 3. During the microscale inverted capillary boiling point determination, the following was observed. When heating was discontinued at 132C the liquid immediately entered the inverted bell. Heating was continued again and the liquid was forced out of the bell. Heating was again discontinued at 153C while a very rapid stream of bubbles emerged from the bell. While the sample cooled, the rate of bubbling diminished until the 140C, when the liquid entered and filled the bell. Explain what was happening at each of the three temperatures