Verified Solution • 2025–26 Session moderate

QJEEM25Ch5625: JEE Main 2025 Chemistry - Class 12 JEEM25Ch5625 Solution: The metal ion whose electronic configuration is not affected by …

The metal ion whose electronic configuration is not affected by the nature of the ligand and which gives a violet colour in non-luminous flame under hot condition in borax bead test is

Multiple Choice Options

  • A Cr3+\mathrm{Cr}^{3+}
  • B Ti3+\mathrm{Ti}^{3+}
  • C Ni2+\mathrm{Ni}^{2+}
  • D Mn2+\mathrm{Mn}^{2+}

Step-by-Step Verified Solution

Ni+2\mathrm{Ni}^{+2} gives violet coloured bead in non-luminous flame under hot conditions. Ni+2\mathrm{Ni}^{+2} has d8\mathrm{d}^8 configuration which does not depend on nature of ligand present in octahedral complex.

Ni+2:t2 g6eg2\mathrm{Ni}^{+2}: \mathrm{t}_{2 \mathrm{~g}}{ }^6 \mathrm{e}_{\mathrm{g}}{ }^2

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