Chemistry · 2024
JEE Main · 6 April 2024, Shift 2 · Q72
During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in NH_4 OH solution when…
During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in $\displaystyle \mathrm{NH}_4 \mathrm{OH}$ solution when sodium carbonate extract was first acidified with dil. $\displaystyle \mathrm{HNO}_3$ and then $\displaystyle \mathrm{AgNO}_3$ solution was added. This indicates presence of :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle \mathrm{Br}^{-}$
More from Qualitative Salt Analysis
- Consider the following test for a group-IV cation. M^2++H_2 S → A( Black precipitate )+ byproduct; A+ aqua regia → B+NOCl+S+H_2 O; B+KNO_2+CH_3 COOH…2024
- Molar mass of the salt from NaBr, NaNO_3, KI and CaF_2 which does not evolve coloured vapours on heating with concentrated H_2 SO_4 is ____ g mol^-1.…2024
- Match List I with List II Choose the correct answer from the options given below:2024
- 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
- In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to:2024
- 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
JEE Main 2024 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.