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JAMB Chemistry 1979 Question 5

Question 5

Redox Reactions

The oxidation state of manganese in potassium permanganate is

  1. A.+7
  2. B.+5
  3. C.+3
  4. D.+2
  5. E.+1
Show the answer and explanation

Answer: A (+7)

Explanation

In KMnO4: (+1) + x + 4(−2) = 0, so x = +7.