Chemistry · 2025
JEE Main · 28 January 2025, Shift 1 · Q62
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…
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
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle \mathrm{Ni}^{2+}$
More from Qualitative Salt Analysis
- Consider the following reactions Na_2 B_4 O_7 →Δ 2 X+Y; CuSO_4+Y → Non-Luminous flame Z+SO_3; 2 Z+2 X+ Carbon → Luminous flame 2 Q+Na_2 B_4 O_7+CO…2026
- When a salt is treated with sodium hydroxide solution it gives gas X. On passing gas X through reagent Y a brown coloured precipitate is formed. X…2025
- Consider the following reactions. PbCl_2+K_2 CrO_4 → A+2 KCl (Hot solution) A+NaOH ⇌ B+Na_2 CrO_4; PbSO_4+4 CH_3 COONH_4 →(NH_4)_2 SO_4+X In the…2026
- Consider three metal chlorides x, y and z, where x is water soluble at room temperature, y is sparingly soluble in water at room temperature and z is…2026
- On heating a mixture of common salt and K_2 Cr_2 O_7 in equal amount along with concentrated H_2 SO_4 in a test tube, a gas is evolved. Formula of…2026
- A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated…2026
- Identify A, B and C in the given below reaction sequence2025
- A paper dipped in a dil. H_2 SO_4 solution of ' X ' upon treatment with SO_2 gas turns into green. The compound ' X ' is:2026
JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.