Essential Chemistry for IGCSE - Making And Identifying Salts (Section 3 - No. 14)
What should a student do with a test tube of gas after collecting it in the test tube to identify?
The test tube must be lit before it is taken out of the water.
The test tube is taken out of the water before any test is done.
The test tube should be taken out of the water to test for the gas.
You should not be taking a sample of gas to test it
Explanation
The gas should not be allowed to escape.
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