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Home Questions & Answers Science Chemistry Question Answers Which one of the following statements related to lanthanons is incorrect ?

    Which one of the following statements related to lanthanons is incorrect ?

  • Ce (+4) solutions are widely used as oxidizing agent in volumetric analysis.
  • Europium shows +2 oxidation state.
  • The basicity decreases as the ionic radius decreases from Pr to Lu
  • All are correct
  • Explanation:

    Ce+4 is strong oxidising agent and easily convert into Ce+3 Eu+2 exist and behave as reducing agent lanthanons are much more reactive than aluminum. Ln(OH)3 are basic in nature and as ionic radius decrease, basic nature decreases from Ce to Lu.