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实验装置 实验步骤:在试管中注入少量铁屑和2～3毫升苯,通入氧气(不要过快),先看到苯呈黄
Experimental setup Experimental procedure: Inject a small amount of iron filings and 2~3 ml of benzene into the test tube, and introduce oxygen (not too fast). First see the benzene is yellow