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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3pn123

Select the correct statement(s) about group 16 elements and their compounds.

  1. APolonium is a typical non-metal.
  2. BThe reducing character of the hydrides increases in the order < < .
  3. COxygen shows mainly the state whereas S, Se and Te also show , and states.
  4. D is a gas whereas is a solid at room temperature.

Answer: B, C, D

Heavier elements have vacant d orbitals and show higher positive oxidation states, so the first statement is true. SO2 is a gas and SeO2 is a white volatile solid. Weaker H-E bonds make the heavier hydrides stronger reducing agents. Polonium is a radioactive metal, so the last is false.
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