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Which of the following substances is the MOST acidic?

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The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.

The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.

Which of the following substances is the MOST acidic?
A . lemon juice(pH = 2.3)
B . vinegar(pH = 2.8)
C . orange juice(pH = 3.5)
D . milk(pH = 6.5)
E . seawater(pH = 8.4)

Answer: A

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