Practice Oxidation States - 4.5.3 | 4. The d– and f-Block Elements | CBSE Grade 12 Chemistry Part 1
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.

4.5.3 - Oxidation States

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is an oxidation state?

💡 Hint: Think of it as an indicator of electron transfer.

Question 2

Easy

Give an example of a transition metal that shows disproportionation.

💡 Hint: Consider which metals have variable oxidation states.

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 disproportionation?

  • A reaction where one element oxidizes and reduces itself
  • Only oxidation occurs
  • Only reduction occurs

💡 Hint: Focus on the word that combines oxidation and reduction.

Question 2

True or False: All transition metals can exhibit disproportionation.

  • True
  • False

💡 Hint: Think about which metals are known for variable oxidation states.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If manganese can exist in +4, +6 and +7 oxidation states, compare the stability of these states in a strong acidic solution versus a neutral solution.

💡 Hint: Consider how acidic conditions affect oxidation and reduction reactions.

Question 2

Design an experiment to observe the disproportionation of manganese in laboratory conditions and explain what to look for.

💡 Hint: Track the change in color from the reactant to the products.

Challenge and get performance evaluation