Jee Main
D And F Block Elements
JEE Main 2026 (Online) 2nd April Evening Shift
MCQ+4 / -12026
Among $Fe^{2+}$, $Fe^{3+}$, $Cr^{2+}$ and $Zn^{2+}$, the ion that shows positive borax bead test and with highest ionisation enthalpy is :
Jee Main
JEE Main 2026 (Online) 2nd April Evening Shift
Among $Fe^{2+}$, $Fe^{3+}$, $Cr^{2+}$ and $Zn^{2+}$, the ion that shows positive borax bead test and with highest ionisation enthalpy is :