AQA GCSE Chemistry

Revision Notes

8.2.1 Test for Hydrogen

Test Yourself

Squeaky Pop Test

How to test for hydrogen

  • The test for hydrogen consists of holding a burning splint held at the open end of a test tube of gas
  • If the gas is hydrogen it burns with a loud “squeaky pop” which is the result of the rapid combustion of hydrogen with oxygen to produce water
  • Be sure not to insert the splint right into the tube, just at the mouth, as the gas needs air to burn

& GCSE Chemistry revision notes

Diagram showing the test for hydrogen gas

Exam Tip

It is easy to confuse the tests for hydrogen and oxygen. Try to remember that a ligHted splint has an H for Hydrogen, while a glOwing splint has an O for Oxygen.

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Stewart

Author: Stewart

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