The question asks to identify an example of a very hard cheese from the given options. Cheese hardness primarily depends on its moisture content and aging process. Very hard cheeses have low moisture content and are aged for extended periods, resulting in a firm, often granular texture.
Based on the analysis, Parmesan cheese is the prime example of a very hard cheese among the choices provided due to its extensive aging process and low moisture content, which gives it a distinct hard, granular texture.
| List-I | List-II |
| Electronic Configuration | First Ionisation energy (kJ mol$^{-1}$) |
| (A). ns$^2$ | (I). 2100 |
| (B). ns$^2$np$^1$ | (II). 1400 |
| (C). ns$^2$np$^3$ | (III). 800 |
| (D). ns$^2$np$^6$ | (IV). 900 |
| List-I | List-II |
| Spectroscopy | Property |
| (A). Raman | (I). Polarizability |
| (B). FTIR | (II). Dipole Moment |
| (C). UV-Visible | (III). Absorbance |
| (D). NMR | (IV). Spin |