ChemInform Abstract: Reactions in Strongly Basic Media. Part 7. Correlation of the Rates of Alkaline Hydrolysis of 2‐Substituted 3‐ and 5‐Nitropyridines, 4‐Nitropyridine N‐Oxide, and 2‐ and 4‐Substituted Pyridine Methiodides in Aqueous Dimethyl Sulfoxide with an Acidity Function.