Question

Which one of the following pairs of substances illustrate the Law of Multiple Proportions? O A. 03, O2 OB.D20, H20 (D = deuterium) O C. SiO2, Sb203 OD.KCI, MgCl2 O E. PC13, PCI

Answer 1

The correct answer is: PCl₃ and PCl₅

Step-by-step explanation:

Law of multiple proportions, also known as the Dalton's Law, states that the when the two different chemical elements combine in order to form two or more than two chemical compounds, then the ratio of mass of the chemical element that combines with the fixed mass of other chemical element is the ratio of small whole numbers.

Example: PCl₃ and PCl₅