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煤、石油、天然气的综合利用

> 观察下图，下列叙述中错误的是 [ ] A．图示实验中发生了化学变化 B．液体X的pH >7，液体Y是一种黑色黏稠状液体 C．气体Z易燃，可还原CuO D．液体Y是一种纯净物

问题：

发布时间：2024-09-12

观察下图，下列叙述中错误的是

[ ]
A．图示实验中发生了化学变化
B．液体X的pH >7，液体Y是一种黑色黏稠状液体
C．气体Z易燃，可还原CuO
D．液体Y是一种纯净物

参考答案：

提问用户：I1***up8

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