Please answer the following questions about Acifran:

1. How many degrees of unsaturation are present in the compound? Show your calculations

2. IR spectrum: What bands would be expected in the functional group region? In a table, clearly indicate each active functional group and the frequency of its stretch.

3. ¹H NMR spectrum: How many sets of protons are expected? What is the shape, size, and shift expected for each set of protons? On the chemical structure, use color-coding or numbering to clearly indicate each set of equivalent protons. In a table, clearly indicate for each set of equivalent protons, the size of the signal, the shape of the signal, and the chemical shift of the signal for each set of protons.

4. ¹³C NMR spectrum: How many peaks are expected for carbon atoms in the molecule? What is the expected chemical shift for each type of carbon atom? On the chemical structure, use color-coding or numbering to clearly indicate each set of equivalent carbon atoms. In a table, clearly indicate the size of the signal and the chemical shift for each set of equivalent carbon atoms.

5. Mass spectrum: What is the molecular ion? Predict the most likely base peak. If applicable to the compound, identify the presence of chlorine, bromine, or nitrogen in the mass spectrum. In a table, include the structure and mass for the molecular ion and the base peak