In which of the following, \( NH_{3} \) is not used?
Show Hint
- Tollen's reagent
- Nessler's reagent
- Group reagent for the analysis of IV group basic radicals
- Group reagent for the analysis of III group basic radicals
The Correct Option is B
Solution and Explanation
- Tollen's reagent is an ammoniacal silver nitrate solution. - Group III and IV reagents use $NH_4OH$ (which contains $NH_3$).
Step 2: Nessler's Reagent
Nessler's reagent is a solution of potassium tetraiodomercurate(II) ($K_2[HgI_4]$) in $KOH$.
Step 3: Conclusion
Ammonia ($NH_3$) is not a component of Nessler's reagent; instead, Nessler's reagent is used to test for the presence of ammonia or ammonium ions.
Final Answer: (b)
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