Radical Ions and Their Reactions PDF

## Radical Ions and Their Reactions | Topic | Detail | Example Reaction | JEE Question | |---|---|---|---| | Basic Radical: Lead (Pb2+) | Color: White | Pb2+ + 2I- → PbI2 (Yellow precipitate) | What is the color of the precipitate formed when lead nitrate reacts with potassium iodide? Answer: Yello...

## Radical Ions and Their Reactions | Topic | Detail | Example Reaction | JEE Question | |---|---|---|---| | Basic Radical: Lead (Pb2+) | Color: White | Pb2+ + 2I- → PbI2 (Yellow precipitate) | What is the color of the precipitate formed when lead nitrate reacts with potassium iodide? Answer: Yellow | | Acid Radical: Sulfate (SO42-) | Color: White (with Ba²+) | SO42- + Ba2+ → BaSO4 (White precipitate) | Which acid radical forms a white precipitate with barium ions? Answer: Sulfate (SO42-) | | Confirmatory Test for Chloride (Cl-) | Color: White (with Ag+) | Cl- + Ag+ → AgCl (White precipitate) | What is the confirmatory test for chloride ions? Answer: White precipitate with silver ions | | Basic Radical: Copper (Cu2+) | Color: Blue | Cu2+ + 2OH- → Cu(OH)2 (Blue precipitate) | What is the color of the precipitate formed with copper ions and hydroxide ions? Answer: Blue | | Basic Radical: Iron (Fe3+) | Color: Brown | Fe3+ + 3OH- → Fe(OH)3 (Brown precipitate) | What is the confirmatory test for ferric ions? Answer: Brown precipitate with hydroxide ions | | Acid Radical: Carbonate (CO32-) | Effervescence with acid | CO32- + 2H+ → CO2 + H2O | Which acid radical gives effervescence with dilute acids? Answer: Carbonate (CO32-) | | Acid Radical: Chloride (Cl-) | Color: White (with Ag+) | Cl- + Ag+ → AgCl (White precipitate) | What is the color of the precipitate formed when chloride ions react with silver ions? Answer: White | | Confirmatory Test for Bromide (Br-) | Color: Pale Yellow (with Ag+) | Br- + Ag+ → AgBr (Pale yellow precipitate) | What is the confirmatory test for bromide ions? Answer: Pale yellow precipitate with silver ions |