An element X forms the following compounds with chlorine; XCl4, XCl3, XCl2. This illustrates the?

A. law of multiple proportions
B. law of chemical proportions
C. law of simple proportions
D. law of conservation of mass

Correct Answer:

Option A – law of multiple proportions

Explanation

The law of multiple proportions states that when elements A and B combine to form more than one chemical compound then the various masses of sample A react with a fixed mass of sample B are in a simple multiple ratio.