JEE Main 2012Chemistryd and f Block Elements

JEE Main 2012 — d and f Block Elements Questions with Solutions

7 JEE Main 2012 d and f Block Elements previous-year questions with verified answers and step-by-step solutions.

These are the JEE Main 2012 previous-year questions from the d and f Block Elements chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the d and f Block Elements chapter hub.

  1. Q12012MCQMedium

    The d-electron configurations of Cr²⁺, Mn²⁺, Fe²⁺ and Co²⁺ are d⁴, d⁵, d⁶ and d⁷ respectively. Which one of the followi…

  2. Q22012MCQMedium

    Reagent used to convert allyl alcohol to acrolein is

  3. Q32012MCQMedium

    Which of the following forms stable +4 oxidation state?

  4. Q42012MCQMedium

    Iron exhibits +2 and +3 oxidation states. Which of the following statements about iron is incorrect?

  5. Q52012MCQMedium

    Magnetic moment of Gd³⁺ ion (Z=64) is

  6. Q62012MCQMedium

    Which is not the correct Statement? (At. nos. Ce=58, Lu=71, La=57, Yb=70 )

  7. Q72012MCQMedium

    The number of unpaired electrons in Gadolinium [Z=64] is

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