write a test to identify H2 and CO2
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Tests for gases
Hydrogen, oxygen, carbon dioxide, ammonia and chlorine can be identified using different tests.
Hydrogen. A lighted wooden splint makes a popping sound in a test tube of hydrogen.
Oxygen. A glowing wooden splint relights in a test tube of oxygen.
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Answer: To identify h2 we bring a lighted candle towards the test tube and should hear popping sound.
To identify CO2 we could use limewater as CO2 when passed through limewater it turns it milky.
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