UPSC CDS 2 2018 GK Paper

Using the subscripts present, we can tell how many atoms are present in the given compound.
- In this compound, for example, we see that there are 7 atoms of Carbon, 7 atoms of Hydrogen, 1 atom of Nitrogen, and 2 atoms of Oxygen.
- So, in total, there are 17 atoms in one molecule of the compound.
- So, Option 1 is the correct answer.