Final answer:
The molecular ratios for the compounds are NO (1:1), NCl₃ (1:3), N₂O₄ (1:2), and P₄O₆ (2:3), representing the number of nitrogen, chlorine, oxygen, and phosphorus atoms respectively.
Step-by-step explanation:
The ratio of atoms in the molecular formulas for each given compound is as follows:
- (a) NO has a ratio of 1 nitrogen atom to 1 oxygen atom, thus a ratio of 1:1.
- (b) NCl₃ has 1 nitrogen atom to 3 chlorine atoms, giving a ratio of 1:3.
- (c) N₂O₄ consists of 2 nitrogen atoms to 4 oxygen atoms, which reduces to a ratio of 1:2.
- (d) P₄O₆ has 4 phosphorus atoms to 6 oxygen atoms, simplifying to a ratio of 2:3 after dividing each side by 2.
It is important to note the molecular ratios reflect the number of each type of atom present in the molecule. Calculating and understanding these ratios is crucial in the field of chemistry, allowing one to grasp the stoichiometry and composition of compounds.