Practice Molecularity of a Reaction - 4.5 | Chapter 4: Chemical Kinetics | ICSE Class 12 Chemistry
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is molecularity?

💡 Hint: Think about how many particles are involved in a single step of a reaction.

Question 2

Easy

Can molecularity ever be a fraction?

💡 Hint: Remember, how we count particles!

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 is the highest value molecularity can take?

  • 1
  • 2
  • 3
  • 4

💡 Hint: Remember, what's the maximum for a simple step?

Question 2

True or False: Molecularity can be a fraction.

  • True
  • False

💡 Hint: Think about how we count different species.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given the reaction 2A + B → 3C, identify the molecularity of each step if the mechanism is composed of two elementary steps, the first is A + B → D (slow) and D → C (fast). What are the implications for the reaction order?

💡 Hint: Identify molecularities first; then look at the slower step.

Question 2

Discuss why a reaction featuring a termolecular mechanism might show a slower rate compared to a bimolecular mechanism, even with similar concentrations.

💡 Hint: Think about the probability of particle collisions.

Challenge and get performance evaluation