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ChemistryJEE Main 6 Apr 2026, Shift 2·Q10·MCQ·Easy–moderate

d- and f-Block · Ionisation enthalpies of 3d metals

The correct order of first (ΔiH1\Delta_\mathrm{i}H_1) and second (ΔiH2\Delta_\mathrm{i}H_2) ionisation enthalpy values of Cr and Mn is :
  • (A)ΔiH1\Delta_\mathrm{i}H_1 : Cr >> Mn
  • (B)ΔiH2\Delta_\mathrm{i}H_2 : Cr >> Mn
  • (C)ΔiH1\Delta_\mathrm{i}H_1 : Mn >> Cr
  • (D)ΔiH2\Delta_\mathrm{i}H_2 : Mn >> Cr
Choose the correct answer from the options given below :
  1. (1)A and B only
  2. (2)B and C only
  3. (3)A and D only
  4. (4)C and D only
We corrected a printing error in the original paper

Source printed “ionisation enthalpy values of cr and Mn are”.

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