题目内容：
下列实验现象正确的是
A.红磷在氧气中燃烧，产生大量白雾
B.稀硫酸能使紫色石蕊试液变蓝色
C.硫酸镁溶液与氢氧化钠溶液反应生成蓝色沉淀
D.镁条在空气中燃烧，发出耀眼的强光，放出大量的热，生成了白色固体
参考答案：
选择题：下列实验现象正确的是
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