AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
The pH scale generally ranges from 0 to 14, where 0 represents a very acidic solution and 14 represents a very alkaline solution. A neutral solution has a pH of 7.
Source: Chapter 2, Section 2.3
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The key facts to state are the range (0–14), what the extremes mean, and the neutral value (7). Examiners expect all three points in a 1-mark answer — even one crisp sentence covering all three earns full marks. Do not write more than one or two lines.