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5 September, 14:08

Which of these elements have an oxidation state of - 2?

A. Hydrogen

B. Chromium

C. Iron

D. Oxygen

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Answers (1)
  1. 5 September, 14:32
    0
    If you look at the periodic table, you will notice Sulfur, Selenium, Tellurium, and Oxygen are the only ones with an oxidation state of - 2. Therefore I concur that Oxygen has an oxidation state of - 2.
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