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JEE Main Chemistry Class 12 Analytical Chemistry Questions

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Question : 1

Total: 106

In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :

[4 Apr 2024 Shift 1]

prevent interference by phosphate ions
decrease concentration of ‌−‌OH ions
increase concentration of Cl−ions
increase concentration of NH4+ions

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