Answer: Option (d) is the correct answer.
Step-by-step explanation:
When we write the formula of a compound, then we get to know the symbol of atoms involved in the formula, number of atoms involved in the formula, and their ratio.
For example, the formula of ferrous chloride is
. This shows that an iron (Fe) atom and 2 chlorine atoms are involved with each other. Their ratio is 1:2.
But the formula does not tell about the structure of atom that is how atoms are arranged with each other.
Thus, we can conclude that the formula of a compound indicates all of the following except the arrangement of the atoms in the molecule.