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JIPMER 2011
Exam
JIPMER
Year
2011
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

JIPMER 2011 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

In which of the following, NH_3 is not used?

In which of the following, NH3\mathrm{NH}_3 is not used?

Options

  1. ATollen's reagent
  2. BNessler's reagent
  3. CGroup reagent for the analysis of IV group basic radicals
  4. DGroup reagent for the analysis of III group basic radicals

Correct answer

B. Nessler's reagent

Step-by-step solution

Potassium tetraiodo mercurate (II), i.e., K2[HgI4]\mathrm{K}_2\left[\mathrm{HgI}_4\right] dissolves in KOH solution to give Nessler's reagent. Nessler's reagent is used to test NH4+\mathrm{NH}_4^{+}ions.
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