JAMB - Chemistry (1978 - No. 7)
An element X forms the following compounds with chlorine; XCl4, XCl3, XCl2. This illustrates the
law of multiple proportions
law of chemical proportions
law of simple proportions
law of conservation of mass
law of definite proportions
Selitys
this question expresses the law of multiple proportions which states that if two elements A and B combine together to form more than one compound, the various masses of element B which combines with a fixed mass of B are in simple whole number ratios. e.g