In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride…
Chemistry · JEE Main · NTA Exams — Principles Related To Practical Chemistry
In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to:
(Jee Main 2024)
(Jee Main 2024)
- increase concentration of Cl– ions.
- increase concentration of \(\mathrm{NH}_{4}^{+}\)ions.
- prevent interference by phosphate ions.
- decrease concentration of –OH ions.
Answer
(D) decrease concentration of – OH ions.
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