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MHT CET Medical202622 April 2026Morning ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

Which among the following elements does NOT exhibit -2 oxidation state?

Options

  1. AO
  2. BSe
  3. CTe
  4. DPo

Correct answer

D. Po

Step-by-step solution

The given elements belong to Group 16 of the periodic table. The tendency to exhibit a -2 oxidation state decreases down the group due to an increase in atomic size, a decrease in electronegativity, and an increase in metallic character. Oxygen, Selenium, and Tellurium are non-metals/metalloids and readily exhibit a -2 oxidation state. Polonium (Po) is a radioactive metal with low electronegativity. Therefore, it hardly exhibits a -2 oxidation state. Its common oxidation states are +2 and +4 . Answer: Po

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