What is the pH of a solution with [H⁺] = 10⁻³ M?

A 1

B 3

C 7

D 11

✓ Correct Answer: Option B

pH = −log[H⁺] = −log(10⁻³) = 3. This is an acidic solution.

💡 Why is B) the correct answer?

The correct answer to the question "What is the pH of a solution with [H⁺] = 10⁻³ M?" is Option B: 3.

The other options — A) 1, C) 7, D) 11 — are incorrect for this Everyday Science question. As explained above: pH = −log[H⁺] = −log(10⁻³) = 3. This is an acidic solution.

📚 About This Everyday Science Practice Question

This 2-level Everyday Science question from the Chemistry - Elements & Compounds topic is part of One Paper Preparation's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free Everyday Science practice test or use flashcards for spaced repetition review.

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What is the pH of a solution with [H⁺] = 10⁻³ M?

✓ Correct Answer: Option B

📚 About This Everyday Science Practice Question

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