Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

D and F Block Elements question

2024 · 6 Apr · Shift 2 · Q27
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /D and F Block Elements
  5. /2024 · 6 Apr · Shift 2 · Q27

D and F Block Elements question

2024 · 6 Apr · Shift 2 · Q27

JEE MainChemistryD and F Block ElementsNumerical+4 / −1
Among VO2+,MnO4−\mathrm{VO}_2^{+}, \mathrm{MnO}_4^{-}VO2+​,MnO4−​ and Cr2O72−\mathrm{Cr}_2 \mathrm{O}_7^{2-}Cr2​O72−​, the spin-only magnetic moment value of the species with least oxidising ability is ‾\underline{\hspace{2cm}}​ BM (Nearest integer). (Given atomic member V=23,Mn=25,Cr=24\mathrm{V}=23, \mathrm{Mn}=25, \mathrm{Cr}=24V=23,Mn=25,Cr=24)
Numerical answer
PreviousNext

More from D and F Block Elements

  • Iron (III) catalyses the reaction between iodide and persulphate ions, in which A. Fe3+ oxidises the iodide ion B. Fe3+ oxidises the persulphate ion C. Fe2+ reduces the iodide ion D. Fe2+…2024 · MCQ
  • Number of colourless lanthanoid ions among the following is ​. Eu3+,Lu3+,Nd3+,La3+,Sm3+2024 · Numerical
  • The electronic configuration of Cu(II) is 3 d9 whereas that of Cu(I) is 3 d10. Which of the following is correct?2024 · MCQ
  • A transition metal 'M' among Sc,Ti,V,Cr,Mn and Fe has the highest second ionisation enthalpy. The spin-only magnetic moment value of M+ ion is ​…2024 · Numerical
  • The electronic configuration of Einsteinium is : (Given atomic number of Einsteinium =99)2024 · MCQ
  • Give below are two statements : Statement I : The higher oxidation states are more stable down the group among transition elements unlike p-block elements. Statement II : Copper can not liberate hydrogen from weak acids. In the light of…2024 · MCQ
  • NaCl reacts with conc. H2​SO4​ and K2​Cr2​O7​ to give reddish fumes (B), which react with NaOH to give yellow solution (C). (B) and (C) respectively are ;2024 · MCQ
  • The electronic configuration for Neodymium is: [Atomic Number for Neodymium 60]2024 · MCQ