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Chemistry · PYQ NEET UG 2016(2)

हिन्दी

Which one of the following statements related to lanthanoids is INCORRECT? Which of the above statements is/are NOT correct?

  1. A
    Ce (+4) solutions are widely used as oxidizing agent in volumetric analysis.
  2. B
    Europium shows +2 oxidation state.
  3. C
    The basicity decreases as the ionic radius decreases from Pr to Lu.
  4. D
    All the lanthanoids are much more reactive than aluminium.
View Answer & Solution

Correct answer · Option D

All the lanthanoids are much more reactive than aluminium.

Explanation

Not all lanthanoids are much more reactive than aluminum; some have standard electrode potentials close to or comparable with reactive metals, but reactivity varies.
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