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ICSE Notes 2016 : Chemistry (Bishop Cotton Boys School (BCBS), Bangalore)

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Bishop Cotton Boys' School (BCBS), Bangalore
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Practical Chemistry Sr.no Test 1. Rekindles the glowing splinter 2. Turns lime water milky 3. Turns moist starch iodide paper bluish black 4. Curdy white ppt with silver nitrate solution 5. Turns moist lead acetate paper silvery black 6. Turns moist potassium iodide paper brown 7. White dense fumes with HCl Gas Present Oxygen CO2 and SO2 Cl2 HCl H2S NO2 NH3 Anions present: Sr.no Anion 1. Carbonates 2. Sulphite 3. 4. Sulphide Sulphate 5. Chloride 6. Test Turns lime water milky 1.Turns acidified potassium dichromate from orange to clear green 2. Acidified potassium permanganate from pink to colourless Turns moist lead acetate paper silvery black Use Barium chloride: White ppt of barium sulphate is formed Use silver nitrate: Curdy white ppt of silver chloride is formed 1. Brown ring test 2. Turns moist potassium iodide paper brown Nitrate Test for organic compounds: Test Organic compd + Br2 solution + CCl4 Organic compd + KMnO4 Organic compd + Ethane No effect No effect No effect Ethene Brown colour discharges Purple colour discharges No effect Ethyne Brown colour discharges Purple colour discharges Red ppt

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