ECZ Chemistry 5070 Practice Questions - Zambia School Certificate GCE - Chemistry (5070) Exam

A learner needs to smell a gas produced in a test tube. Which procedure is the safest laboratory practice?

Waft a little of the gas towards the nose with a hand Inhale deeply from the test tube immediately after the reaction starts Pour the contents onto the bench and smell the spill Place the nose directly over the mouth of the test tube

Correct Answer:

Waft a little of the gas towards the nose with a hand

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