2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. The d-and f-Block Elements / d तथा f ब्लॉक के तत्व

JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Compounds of Transitional Elements

  • question_answer
    In the reduction of dichromate by \[Fe(II)\]the number of electrons involved per chromium atom is [Pb. PMT 2001]

    A) 2

    B) 3

    C) 4

    D) 1

    Correct Answer: B

    Solution :

    \[Cr_{2}^{6+}+6{{e}^{-}}\to 2C{{r}^{3+}}\]; \[F{{e}^{2+}}\to F{{e}^{3+}}+{{e}^{-}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner