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

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

  • A.
    1
  • B.
    -2
  • C.
    3
  • D.
    4
  • E.
    5
Correct Answer: Option E
Explanation

The oxidation number of O  is 2-

Therefore, let the oxidation number of X be a

a + (-2 x 4) = -3

a – 8 = -3

a = -3+8

a = 5

 

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