Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 20246 AprilEvening Shift
Exam
JEE Main
Year
2024
Date
6 April
Shift
Evening Shift
Subject
Chemistry
Chapter
Practical Chemistry

JEE Main 2024 · 6 April · Evening Shift · Chemistry · Practical Chemistry

During the detection of acidic radical present in a salt, a student...

During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in (\mathrm{NH}_4 \mathrm{OH}) solution when sodium carbonate extract was first acidified with dil. (\mathrm{HNO}_3) and then (\mathrm{AgNO}_3) solution was added. This indicates presence of :

Options

  1. A(\mathrm{Br}^{-})
  2. B(I\mathrm{I}^{-})
  3. C(\mathrm{Cl}^{-})
  4. D(\mathrm{CO}_3{ }^{2-})

Correct answer

A. (\mathrm{Br}^{-})

Step-by-step solution

Ag++I−→AgIYellow ppt.Ag++Cl−→AgClWhite pptAg++Br−→AgBrPale yellow ppt\begin{array}{ll} \mathrm{Ag}^{+}+\mathrm{I}^{-} \rightarrow \mathrm{AgI} & \text{Yellow ppt.} \\ \mathrm{Ag}^{+}+\mathrm{Cl}^{-} \rightarrow \mathrm{AgCl} & \text{White ppt} \\ \mathrm{Ag}^{+}+\mathrm{Br}^{-} \rightarrow \mathrm{AgBr} & \text{Pale yellow ppt} \end{array}
Practice Practical Chemistry on Quantrex Academy →

More from Practical Chemistry

Passage: Consider the following reaction sequence in which J , K , L and M are the major… JEE Advanced 2026Among Fe^ 3+ , Pb^ 2+ , Cu^ 2+ and Mn^ 2+ , identify the one that gets precipitated out… JEE Main 2026Among Fe^ 2+ , Fe^ 3+ , Cr^ 2+ and Zn^ 2+ , the ion that shows positive borax bead test… JEE Main 2026A salt with few drops of conc. HCl gives apple green colour in flame test. The group… JEE Main 2026A student has been given 0.314 g of an organic compound and asked to estimate Sulphur.… JEE Main 2026In the Group analysis of cations, Ba^ 2+ ~\&~ Ca^ 2+ are precipitated respectively as JEE Main 2026Consider three metal chlorides x, y and z, where x is water soluble at room temperature… JEE Main 2026By usual analysis, 1.00 g of compound (X) gave 1.79 g of magnesium pyrophosphate. The… JEE Main 2026 Full Practical Chemistry list All JEE Main PYQs