Single Answer MCQ
Q-00004324

How does the concentration of hydronium ions change when an acid is diluted?

1

It decreases

2

It increases

3

It remains the same

4

It doubles

Answer and Solution

Answer

A. It decreases

Solution:

When an acid is diluted, the concentration of hydronium ions (H3O+) decreases because there are fewer H3O+ ions per unit volume of solution.

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