Identify the incorrect statement from the following. — Qualitative and Quantitative Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Smog (particularly photochemical smog) is formed when primary pollutants react under sunlight. Step 2: Nitrogen dioxide (NO2) is a primary component and precursor that photolyzes to initiate the complex series of photochemical reactions that produce ozone, PAN, and other components of smog. Step 3: Therefore, NO2 is considered the basic component of smog in this context, corresponding to option (c).