Practice Dobereiner’s Triads - 5.2.1 | 5. The Periodic Table | ICSE Class 9 Chemistry
K12 Students

Academics

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

Academics
Professionals

Professional Courses

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

Professional Courses
Games

Interactive Games

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

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are Dobereiner’s Triads?

💡 Hint: Think about how elements are related to each other.

Question 2

Easy

Name one example of a Dobereiner’s Triad.

💡 Hint: Recall the common alkali metals.

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 main idea of Dobereiner’s Triads?

  • Classifying all elements in one group
  • Grouping elements in sets of three
  • Based on atomic number

💡 Hint: Think about how elements are structured in Dobereiner's classification.

Question 2

True or False: All elements can be classified into Dobereiner’s Triads.

  • True
  • False

💡 Hint: Reflect on the definition and limitations discussed.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a set of elements: Beryllium, Magnesium, and Calcium, analyze whether they can form a Dobereiner's Triad. Discuss their atomic masses and properties.

💡 Hint: Look at their atomic masses and consider similarities.

Question 2

Critically evaluate the scientific advancements needed to address the limitations of Dobereiner’s Triads.

💡 Hint: Think of how later discoveries built upon previous classifications.

Challenge and get performance evaluation