Practice Examples with 4 electron domains (illustrating lone pair effects) - 3.2.3.1 | Module 3: Chemical Bonding & Structure | IB 12 Chemistry
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Examples with 4 electron domains (illustrating lone pair effects)

3.2.3.1 - Examples with 4 electron domains (illustrating lone pair effects)

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the molecular geometry of methane?

💡 Hint: Think about the number of bonding pairs.

Question 2 Easy

In ammonia, how many lone pairs does nitrogen have?

💡 Hint: Consider the electron domains around nitrogen.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the molecular geometry of NH3?

Tetrahedral
Trigonal Pyramidal
Bent

💡 Hint: Remember how lone pairs influence geometry.

Question 2

True or False: Water (H2O) has a linear geometry.

True
False

💡 Hint: Consider the number of lone pairs.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Predict the effect of adding a second lone pair to the nitrogen in ammonia. How would this impact geometry and bond angles?

💡 Hint: Consider how additional lone pairs affect molecular shapes.

Challenge 2 Hard

Compare and contrast the physical properties of ammonia and water, focusing on molecular shape and intermolecular forces.

💡 Hint: How do shapes affect the strength of intermolecular forces?

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Reference links

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