Lanthanoids and Lanthanoid Contraction

JEE Main Chemistry · d- and f-Block Elements · 14 questions, latest first

• Pairs of elements with the same number of electrons in their respective 4f orbital are [Atomic number. Eu-63, Gd-64, Dy-66,…20264 April, Shift 2 · Q59
• Which of the following ions is the strongest oxidizing agent? (Atomic Number of Ce=58, Eu=63, Tb=65, Lu=71 )202524 January, Shift 1 · Q60
• Lanthanoid ions with 4 f^7 configuration are: Eu^2+ Gd^3+ Eu^3+ Tb^3+ (E) Sm^2+ Choose the correct answer from the options given…202522 January, Shift 1 · Q60
• Number of colourless lanthanoid ions among the following is ____. Eu^3+, Lu^3+, Nd^3+, La^3+, Sm^3+20249 April, Shift 1 · Q87
• The number of element from the following that do not belong to lanthanoids is Eu, Cm, Er, Tb, Yb and Lu20246 April, Shift 1 · Q69
• Diamagnetic Lanthanoid ions are:202430 January, Shift 1 · Q67
• Which of the following acts as a strong reducing agent? (Atomic number: Ce=58, Eu=63, Gd=64, Lu=71 )202429 January, Shift 2 · Q65
• Given below are two statements: Statement (I): In the Lanthanoids, the formation Ce^+4 is favoured by its noble gas…202427 January, Shift 2 · Q68
• The electronic configuration for Neodymium is: [Atomic Number for Neodymium 60]202427 January, Shift 1 · Q68
• The pair of lanthanides in which both elements have high third - ionization energy is:202313 April, Shift 1 · Q70
• Strong reducing and oxidizing agents among the following, respectively, are20236 April, Shift 1 · Q70
• Which of the following elements have half-filled f-orbitals in their ground state? (Given: atomic number Sm=62; Eu=63; Tb=65;…202331 January, Shift 2 · Q39
• Nd^2+= ____202331 January, Shift 1 · Q38
• Which one amongst the following are good oxidizing agents? A. Sm^2+ B. Ce^2+ C. Ce^4+ D. Tb^4+ Choose the most appropriate answer…202324 January, Shift 2 · Q39