Answers S1S Chemistry B E4912 - AG Unit Test — Unit testQuestion 1

1

QuizMultiple Choice

Unit Test — Unit test

Question 1 • S1S: Chemistry B (E4912 - AG)

Which description correctly characterizes the acidity or basicity of a solution?

Answer

A

The higher the pH is, the more the hydroxide ion concentration decreases and the more acidic the solution becomes.

B

The higher the pH is, the more the hydroxide ion concentration increases and the more basic the solution becomes.

C

The lower the pH is, the more the hydronium ion concentration decreases and the more acidic the solution becomes.

D

The lower the pH is, the more the hydronium ion concentration increases and the more basic the solution becomes.

Explanation

As pH increases, a solution becomes more basic. In water, this corresponds to an increase in hydroxide ion concentration. Therefore, the correct description is that higher pH means more hydroxide ions and a more basic solution.

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