Question

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

• A. Ti$^{3+}$
• B. Cr$^{3+}$
• C. Ni$^{2+}$
• D. Mn$^{2+}$

Hint:

The borax bead test is useful for detecting certain metal ions in compounds due to characteristic colors they produce when heated in borax.

Answer 1

The Correct Option is B

Chromium(III) ion (Cr$^{3+}$) typically maintains its electronic configuration across different complexes and imparts a violet color in the borax bead test, a characteristic of Cr$^{3+}$ due to its specific electron configuration.