Which of the following reactions are usually slow?
Correct answer: C. Organic substitution reaction
- A. Neutralization of acids and bases
- B. Explosive reaction of O2 and H2
- C. Organic substitution reaction
- D. Photochemical reactions
Explanation
Slow reactions are those that take a noticeable amount of time to complete.Neutralization of acids and bases and organic substitution reactions are generally slower.Explosive reactions of O₂ and H₂ are extremely fast, and photochemical reactions are usually rapid under light.
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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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