CO还原CuO是初中化学中的一个重要实验。其操作步骤可简化为：一验纳二通气三加热四撤灯五停气。操作时应注意以下问题：1．在通入CO前，必须先检验纯度。CO为可燃性气体，若不纯，加热时可能发生爆炸。2．开始实验时，一定要向盛有CUO的玻管里先通CO一会儿，然后才能加热。这 CO reduction of CuO is an important experiment in junior high school chemistry. The operation steps can be simplified as follows: one inspection, two ventilations, three heating, four evacuation lights, and five stoppages. Operation should pay attention to the following issues: 1. Before the CO is introduced, the purity must be checked first. CO is flammable gas. If it is not pure, it may explode when heated. 2. When you start an experiment, you must first turn on CO for a moment in the glass tube containing CUO before heating. This