To construct a model of methanol (CH₃OH), we need to identify the atoms and their corresponding colors in the molecular model:
- Methanol consists of:
- 1 carbon atom (C) - gray sphere
- 3 hydrogen atoms (H) - 3 white spheres
- 1 oxygen atom (O) - red sphere
- 0 nitrogen atoms (N) - no blue sphere
Combining these, the correct description for a model of methanol would be:
One gray sphere, three white spheres, one red sphere.
So, the correct option is: one gray sphere, three white spheres, one red sphere.