Which is the faster reaction?
Correct answer: C. AgNO3 + NaCl
- A. CH4 + Cl2
- B. CH3COOH + C2H5OH
- C. AgNO3 + NaCl
- D. C + 2H2
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.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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