Question

Which of the following pairs of compounds cannot demonstrate the law of multiple proportions?

• A. NO, NO$_2$
• B. CO, CO$_2$
• C. H$_2$O, H$_2$O$_2$
• D. Na$_3$S, NaF

Hint:

The law of multiple proportions applies when two elements form different compounds by combining in multiple ways.

Answer 1

The Correct Option is D

The law of multiple proportions is applicable when two elements form different compounds through varying ratios of their masses. Na$_3$S and NaF do not exemplify this law, as they are not composed of the same elemental constituents in different proportions.