Order of a reaction can be — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

I don't see the answer options (A, B, C, D) in your question. However, I can explain what "order of a reaction" can be: **The order of a reaction can be:** 1. **Zero** — rate is independent of concentration: $\text{rate} = k$ 2. **Positive integer** (1, 2, 3, etc.) — determined experimentally from rate law: $\text{rate} = k[A]^m[B]^n$ where $m, n$ are positive integers 3. **Fractional** (0.5, 1.5, etc.) — occurs in complex mechanisms; e.g., $\text{rate} = k[A]^{0.5}[B]$ 4. **Negative** — rare but possible in some complex reactions with inhibition 5. **Not necessarily equal to stoichiometric coefficients** — order is determined experimentally, not from the balanced equation **Most common correct answer for "order of a reaction can be":** - **Any real number (zero, positive, negative, or fractional)** — this is typically option D in standard textbooks - The order **cannot be predicted from stoichiometry alone** and must be determined experimentally Without seeing your options, option D likely states that order can be any real number or fractional/zero, which is the most inclusive and correct statement among typical choices.