Practice question

Given: A zero-order reaction has a rate constant of 5.0 × 10⁻³mol L^{-1 min^{-1 . How long will it take for 0.25 M to reduce to 0.1 M? These values define the system as per NCERT data. Formula: t = frac[R]_0 - [R]k = frac0.25 - 0.15.0 × 10⁻³= 30 min .. This is standard NCERT relation. Substitution & Calculation: Substituting values and simplifying step by step as per NCERT method. Result: The computed value matches expected outcome and confirms correct choice as per NCERT.