Practice Order of a Reaction - 4.4 | Chapter 4: Chemical Kinetics | ICSE Class 12 Chemistry
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4.4 - Order of a Reaction

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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define the order of a reaction.

💡 Hint: Think about what the exponents represent in the rate expression.

Question 2

Easy

What characterizes a zero-order reaction?

💡 Hint: Consider whether changing reactant concentrations would affect the rate.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does the order of a reaction indicate?

  • The number of reactants
  • The sum of the exponents in rate law
  • The temperature dependence

💡 Hint: Look back at the relationship between exponents and concentration.

Question 2

In a zero-order reaction, what happens when concentration changes?

  • True
  • False

💡 Hint: Think about the definition of zero-order.

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Challenge Problems

Push your limits with challenges.

Question 1

A chemical reaction is detected to be a first-order reaction with a rate constant of 0.5 s⁻¹. If the initial concentration of the reactant is 2.0 M, what will be the concentration after 2 seconds?

💡 Hint: Don't forget to use the exponential decay formula for first-order reactions.

Question 2

For a second-order reaction, if the rate constant is 0.1 M⁻¹s⁻¹ and the initial concentration of A is 0.5 M, what will be the concentration of A after 10 seconds?

💡 Hint: You need to remember the formula for second-order integrated rate law.

Challenge and get performance evaluation