Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a lone pair?
π‘ Hint: Think about electrons that are not involved in bonds.
Question 2
Easy
How many lone pairs does ammonia have?
π‘ Hint: Count how many pairs are not involved in bonding.
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 molecular geometry of ammonia (NHβ)?
- Tetrahedral
- Trigonal Pyramidal
- Linear
π‘ Hint: Recall the number of bonding and lone pairs.
Question 2
True or False: Lone pairs take up less space than bonding pairs.
- True
- False
π‘ Hint: Think about their repulsion effects.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Predict the molecular geometry and bond angles of a molecule with four electron domains containing two bonds and two lone pairs.
π‘ Hint: Consider how lone pairs influence the arrangement.
Question 2
Explain the polarity of a molecule with a tetrahedral shape but one lone pair on its central atom.
π‘ Hint: Think about how lone pairs can change symmetry.
Challenge and get performance evaluation