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The pH Scale

Science
Stage 4,5
Chemistry

The pH ranges from 0 to 14. An aqueous solution with a pH of less than 7 is acidic. An aqueous solution with a pH of more than 7 is alkaline. The aqueous solution with a pH of exactly 7 is neutral. The pH value decreases from 7 to the bottom, and pH 1 has the maximum acidity. PH value increases from 7 to the alkalinity, and pH 14 has the maximum alkalinity.