C4: Test for Gases- OCR Gateway (9-1) 0.0 / 5 ? ChemistryC4 Test for GasesGCSEOCR Created by: AleenaCreated on: 19-03-18 18:43 How do you test for carbon dioxide? run it thru limewater & if carbon dioxide is present it will go cloudy 1 of 5 How do you test for Hydrogen? Do the 'squeaky pop' test using a lighted splint.The noise is the hydrogen burning with the oxygen in the air to form water 2 of 5 How do you test for Oxygen? using a glowing splint-if it relights in the presence of that gas-it's Oxygen! 3 of 5 How do you test for Chlorine? using damp,blue litmus paper- if it bleaches (turns white) it's chlorine 4 of 5 When testing for Chlorine, why might the litmus paper be red, at first that's because a solution of chlorine is acidic 5 of 5
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