11 JEE Main 2020 d and f Block Elements previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 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.
The incorrect statement is:
The set that contains atomic numbers of only transition elements, is :
The electronic configurations of bivalent europium and trivalent cerium are: (atomic number: X e = 54 , C e = 58 , E u…
The correct electronic configuration and spin-only magnetic moment (BM) of Gd 3 + ( Z = 64 ) , respectively, are :
The INCORRECT statement is :
The lanthanoid that does NOT show + 4 oxidation state is:
Hydrogen has three isotopes A ,   B and C . If the number of neutron(s) in A ,   B and C respectively, are x…
Mischmetal is an alloy consisting mainly of :
The incorrect statement(s) among (a) - (c) is (are) : (a) W ( VI ) is more stable than Cr ( VI ) . (b) in the presence…
The atomic radius of A g is closest to
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