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英语
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Water is added to a test-tube containing dilute sulphuric acid of pH 4.
What could be the pH of the resulting solution?
A 8 B 6 C 4 D 2
人气:248 ℃ 时间:2020-05-23 05:40:45
解答
B 加水可以使硫酸的ph值升高,但不会超过7
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