What do you observe when ammonium hydroxide is added to the aqueous solution of:
What do you observe when ammonium hydroxide is added to the aqueous solution of:
(a) FeSO4 (b) Iron (III) chloride, (c) Lead nitrate (d) Zinc nitrate?
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(a) Dirty green ppt. of Ferrous hydroxide is formed which is insoluble in excess of NH4OH.
FeSO4+ 2NH4OH → [NH4]2SO4 + Fe(OH)2
(b) Reddish brown ppt. of ferric hydroxide is formed which is insoluble in ammonium hydroxide.
FeCl3 + 3NH3OH → 3NH4Cl + Fe(OH)3
(c) White ppt. of lead hydroxide is formed which is insoluble in NH4OH.
Pb(NO3)2 + 2NH4OH → 2NH4NO3 + Pb(OH)2
(d) White gelatinous ppt. of Zinc hydroxide is formed which is soluble in NH4OH.
Zn(NO3)2 + 2NH4OH →2NH4NO3 + Zn(OH)2
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