QA2
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18 Terms
NaOH: white ppt. formed, insoluble in excess
Ca2+
NaOH: white ppt. formed, soluble in excess, giving colourless solution
Zn2+, Al3+, Pb2+
NaOH: blue ppt., insoluble in excess
Cu2+
NaOH: green ppt., insoluble in excess
Fe(II)
NaOH: Reddish-brown ppt., insoluble in excess
Fe(III)
NaOH: ammonia gas released on heating
Ammonium
NH3: no ppt.
Ca2+
NH3: white ppt., soluble in excess
Zn2+
NH3: white ppt., insoluble in excess
Pb2+, Al3+
NH3: green ppt., insoluble in excess
Fe(II)
NH3: reddish-brown ppt., insoluble in excess
Fe(III)
NH3: light blue ppt, soluble in excess to form dark blue ppt.
Cu2+
NH3: no reaction
ammonium
Add dilute acid, bubble limewater, white ppt.
Carbonate
Acidify, silver nitrate: White ppt.
Cl-
Acidify, add silver nitrate, yellow ppt.
I-
Acidify, add aluminium, pungent gas emerged, turn damp red litmus paper blue
Nitrate
Acidify, add barium nitrate, white ppt
SO4 2-
Note 
Flashcards (40)