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JIPMER2011Chemistryp Block Elements (Group 15, 16, 17 & 18)

In which of the following, 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., K ₂ [ HgI ₄ ] dissolves in KOH solution to give Nessler's reagent. Nessler's reagent is used to test NH ₄⁺ ions.

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