Which is the faster reaction?

Explanation

The correct answer is Option C: AgNO3 + NaCl. This reaction is a classic example of a double displacement reaction where two soluble ionic compounds react to form an insoluble precipitate (AgCl) and a soluble salt (NaNO3). Such reactions occur rapidly because the ions are already dissociated in solution and instantly combine to form the precipitate.Option A involves a slower substitution reaction mechanism requiring energy input, Option B involves an esterification that is typically slow and requires a catalyst, and Option D involves a synthesis reaction that requires high temperature and pressure to proceed, making these reactions slower than the ionic reaction in Option C.