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JAMB Chemistry 2021 Question 3

Question 3

Chemical Formulae and Equations

If element X forms the following compounds with fluorine: XF4, XF3, XF2. This illustrates the law of

  1. A.chemical proportions
  2. B.multiple proportions
  3. C.constant proportions
  4. D.simple proportions
Show the answer and explanation

Answer: B (multiple proportions)

Explanation

The same two elements form several compounds in which the masses of fluorine joined to a fixed mass of X are in a simple ratio (4 : 3 : 2): the law of multiple proportions.