General Practical 5.0 / 5 based on 1 rating ? ChemistryPracticalASCCEA Created by: jodimcc123Created on: 18-11-19 14:45 Colour and state of Fluorine Yellow gas 1 of 39 Colour and state of Chlorine Yellow-green gas 2 of 39 Colour and state of Bromine Red brown liquid (and vapour) 3 of 39 Colour and state of Iodine (Solid) Grey-black solid 4 of 39 Colour and state of iodine (vapour) Purple (vapour) 5 of 39 Colour of Chlorine water Green / Colourless 6 of 39 Colour of Bromine water Yellow 7 of 39 Colour of iodine solution in polar solvents Brown 8 of 39 Colour of iodine solution in non-polar solvents Purple 9 of 39 What are the observations when Fluoride reacts with Concentrated sulphuric acid Misty fumes of HF 10 of 39 What are the observations when Chloride reacts with Concentrated sulphuric acid Misty fumes of HCl 11 of 39 What are the observations when Bromide reacts with Concentrated sulphuric acid Misty fumes of HBr / Red-brown vapour from Br2 12 of 39 What are the observations when Iodide reacts with Concentrated sulphuric acid Misty fumes of HF / Purple vapour of I2 / Smell of rotten eggs from H2S / Yellow solid from S / Grey-black solid on the sides of the test tube from I2 13 of 39 Methyl orange colour change (adding acid to alkali) Yellow to Red 14 of 39 Methyl orange colour change (adding alkali to acid) Red to Yellow 15 of 39 Phenolphthalein colour change (adding acid to alkali) Pink to colourless 16 of 39 Phenolphthalein colour change (adding alkali to acid) Colourless to pink 17 of 39 What is observed in the Hydrogen gas test Gives a pop with a burning splint 18 of 39 What is observed in the Oxygen gas test Relights a glowing splint 19 of 39 What is observed in the Chlorine gas test Bleaches damp litmus / universal indicator paper 20 of 39 What is observed in the Carbon dioxide gas test When bubbled through limewater, limewater turns milky 21 of 39 What is limewater? a solution of calcium hydroxide in water (alkaline) 22 of 39 What is observed in the Hydrogen chloride gas test with concentrated ammonia solution White fumes / solid 23 of 39 How is hydrogen chloride collected? Hydrogen chloride gas is more dense than air and can be collected by downward delivery or by using a gas syringe. 24 of 39 What is observed in the Ammonia gas test with concentated hydrochloric acid White fumes / Smoke 25 of 39 Li flame Crimson 26 of 39 Na flame Orange 27 of 39 Potassium flame Lilic / pink through cobalt glass 28 of 39 Calcium flame Brick-red 29 of 39 Barium flame Apple green 30 of 39 Copper flame Green-blue 31 of 39 What is the test fro NH4+ Warm with a solution of sodium hydroxide (NH4+ + NaOH) A pungent smell will be observed 32 of 39 What is the test for SO42- Make a solution and add a solution of Barium Chloride. A white precipitate forms. 33 of 39 What is the test for Halide ions Make a solution in dilute nitric acid and add silver nitrate solution 34 of 39 What is observed when testing for Cl- White precipitate, soluble in dilute ammonia solution 35 of 39 What is observed when testing for Br- Cream precipitate, soluble in concentrated ammonia solution 36 of 39 What is observed when testing for I- Yellow precipitate, insoluble in concentrated ammonia solution 37 of 39 what is the test for a carbonate ion Add dilute acid to form a colourless gas which turns limewater milky 38 of 39 What is the test for iodine Add a few drops of starch to the solution, the solution will turn blue-black 39 of 39
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