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 applies when two elements combine in different ways to form different compounds. Na$_3$S and NaF are not examples of this law because they do not differ in the proportions of the same elements.