What is the proper technique to test the odor of a vapor in a test tube? — Laboratory Chemistry Chemistry Question
Question
What is the proper technique to test the odor of a vapor in a test tube?
A.
Hold the test tube near the nose and sniff.
B.
Use a micropipet to capture some of the gas and sniff that.
C.
Hold the test tube above the nose and pour the gas toward it.
D.✓ Correct
Hold the test tube near the nose and waft the gas toward it with a hand.
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