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The oxidation number of X in \(XO_{4}^{3-}\) is

Chemistry
WAEC 2017

The oxidation number of X in \(XO_{4}^{3-}\) is

  • A. +1
  • B. +3
  • C. +4
  • D. +5
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Correct Answer: Option D
Explanation

\(XO_{4}^{3+}\) = \(X + (-2\times 4) = -3\)

\(X = -3+8 = +5\)

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