Shapes of Molecules and Intermolecular Forces (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why do electron pairs around a central atom arrange to be as far apart as possible?
Why do electron pairs around a central atom arrange to be as far apart as possible?
To minimize electrostatic repulsion
Which shows the correct order of repulsion strength (weakest to strongest)?
Which shows the correct order of repulsion strength (weakest to strongest)?
bonded-bonded < bonded-lone < lone-lone
By approximately how many degrees does each lone pair reduce the bond angle?
By approximately how many degrees does each lone pair reduce the bond angle?
2.5°
What is the shape of a methane () molecule?
What is the shape of a methane () molecule?
Tetrahedral
What is the bond angle in ammonia ()?
What is the bond angle in ammonia ()?
107°
What is the molecular shape of water ()?
What is the molecular shape of water ()?
Non-linear (bent)
How is a double bond treated when predicting molecular shape?
How is a double bond treated when predicting molecular shape?
As a single bonding region
What is the shape and bond angle of carbon dioxide ()?
What is the shape and bond angle of carbon dioxide ()?
Linear, 180°
What shape does boron trifluoride () have?
What shape does boron trifluoride () have?
Trigonal planar
What bond angle exists between adjacent bonds in sulfur hexafluoride ()?
What bond angle exists between adjacent bonds in sulfur hexafluoride ()?
90°