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NEET levelSingle correct optionDifficulty 1 of 3pt219

Fluorine shows only the oxidation state in its compounds (apart from the elemental state). This is mainly because fluorine

  1. Ais the most electronegative element and has no vacant orbitals
  2. Bis a very large atom
  3. Chas a very low ionisation enthalpy
  4. Dhas several unpaired electrons

Answer: A

Fluorine is the most electronegative element, so it always attracts the shared pair and carries a negative oxidation number. Having only the second shell, it has no low-lying orbitals and cannot expand its octet to show positive states.
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