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酸碱指示剂

> 下列说法正确的是 A.使酚酞试液变红的物质一定是碱 B.每种酸碱指示剂都有它的显色范围 C.呈中性的溶液其pH=0 D.向醋酸溶液中滴加石蕊试液，石蕊试液变蓝

问题：

发布时间：2024-09-11

下列说法正确的是

A.使酚酞试液变红的物质一定是碱
B.每种酸碱指示剂都有它的显色范围
C.呈中性的溶液其pH=0
D.向醋酸溶液中滴加石蕊试液，石蕊试液变蓝

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