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Science22/09/2026

pH and Acid-Base Neutralization: A Visual Explainer

A single diagram tracing the pH scale from strongly acidic to strongly basic, and the neutralization reaction that turns an acid and a base into salt and water.

pH and Acid-Base Neutralization: A Visual Explainer

📌 Revision Pointers

  • pH scale: 0-6 acidic, 7 neutral (pure water), 8-14 basic/alkaline.

  • Neutralization: ACID (releases H+) + BASE (releases OH-) -> SALT + WATER, i.e. H+ + OH- -> H2O.

  • Litmus and phenolphthalein tests, plus real-world uses: antacids, liming acidic soil, and effluent treatment.

One diagram mapping the pH scale, the acid-base neutralization reaction, and where everyday substances fall.

💭 Conclusion

A frequently tested Chemistry basic: remember acids release H+, bases release OH-, and neutralization always yields a salt plus water.