CBSE 2025 · Region 2 · Set 1 · Q3 · 1 mark
The body of human beings works within the pH range of :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
7.$\displaystyle 0$ to $\displaystyle 7.8$
Acids, Bases and SaltspH Scale and its Importance in Everyday LifeRemembermcqeasy
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CBSE Class 10 Science past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.