In the precipitation of the iron group in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to [AIIMS 1980; NCERT 1976; DPMT 1983; CPMT 1971, 73, 77,78, 80, 81, 83, 86; KCET 1999]

Prevent interference by phosphate ions

Decrease concentration of \[O{{H}^{-}}\] ions

Increase concentration of \[C{{l}^{-}}\] ions

Increase concentration of \[NH_{4}^{+}\] ions

In the precipitation of the iron group in qualitative analysis, ammoni

1.	In the precipitation of the iron group in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to [AIIMS 1980; NCERT 1976; DPMT 1983; CPMT 1971, 73, 77,78, 80, 81, 83, 86; KCET 1999]
A.	Decrease concentration of \[O{{H}^{-}}\] ions
B.	Prevent interference by phosphate ions
C.	Increase concentration of \[C{{l}^{-}}\] ions
D.	Increase concentration of \[NH_{4}^{+}\] ions
Answer» B. Prevent interference by phosphate ions

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In the precipitation of the iron group in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to [AIIMS 1980; NCERT 1976; DPMT 1983; CPMT 1971, 73, 77,78, 80, 81, 83, 86; KCET 1999]

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