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Acids, Bases and Salts — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYAcids, Bases and Salts2 Marks
Question
Define the terms : pH scale
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Answer

pH scale is a scale (0-14) which gives the strength of an acid and a base as the measure of hydrogen ion concentration in the solution. Neutral solutions have pH equal to 7. Acidic solutions have pH less than 7. Basic solutions have pH more than 7.

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