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Science — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] straightforward initial-understanding
What is the pH range within which the human body works?
Generated by claude-sonnet-4-6 · 2026-06-17 12:34 · grounding rag
Model Answer

The human body works within the pH range of 7.0 to 7.8.

Source: Chapter 2, Section 2.3.1 (Importance of pH in Everyday Life)

Explanation

The examiner expects the exact numerical range (7.0 to 7.8) as stated in the textbook. Simply writing "neutral" or "slightly basic" without the numbers will not earn full marks. Since this is 1 mark, one line with the correct range is sufficient.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.