Practice question

Given: What is the pH of a solution with [H+] = 3.2 × 10⁻³M? Formula: pH = -log(3.2 × 10⁻³) approx 2.5 .. Substitution: Substituting given values into formula as per NCERT 2026-27 method. Calculation: Simplifying step by step with proper SI units like m/s², J kg⁻¹ K⁻¹, 10⁻⁵, A m⁻¹ etc. Final Result: The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.