The question asks for the full form of the acronym CBI. Acronyms are abbreviations formed from the initial letters of other words and pronounced as a word (like NATO) or as a series of letters (like FBI).
Let's look at the provided options for the full form of CBI:
The Central Bureau of Investigation (CBI) is India's premier investigative agency. It is responsible for investigating criminal and national security cases at a national level.
Comparing this with the options:
Therefore, the correct full form of CBI is Central Bureau of Investigation.
| 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 |