Question

What is the atomicity of the FeCO₃ molecule?

• A. Six
• B. Three
• C. Four
• D. Five

Answer 1

The correct option is D Five

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The total number of atoms that constitute a molecule is called its atomicity.

In $FeC{O}_3$,
Number of Fe atoms = 1
Number of C atoms = 1
Number of O atoms = 3

Total number of atoms in the molecule = 1 + 1 + 3 = 5

Hence, the atomicity of the $FeC{O}_3$molecule is 5.