Shapes of molecules

Which of the following does not determine the shape of a molecule?

• electron pairs around the central atom

• lone pair of electrons on other attached atoms

• lone pair of electrons around the central atom

• number of attached atoms

Which pairs of electrons around a central atom in a molecule have the greatest repulsion?

• lone pair to lone pair

• lone pair to bond pair

• bond pair to bond pair

• bond pair to lone pair

What name is given to the shape shown in the picture?

• bent

• trigonal planar

• triangular

• trigonal pyramidal

Which of the following shapes is planar?

• 
• 
• 
• 

What is the bond angle in the shape shown here?

• 109.5^o

• 120^o

• 107^o

• 104.5^o

In which of the following shapes is there atleast a lone pair of electrons around the central atom?

• 
• 
• 
• 

What is the approximate bond angle in a water molecule?

• 90^o

• 180^o

• 107^o

• 104.5^o

What is the approximate bond angle in nitrogen fluoride, NF₃?

• 90^o

• 120^o

• 107^o

• 60^o

The 109.5^o bond angle around each carbon atom in ethane is mainly due to?

• the lone pair of electrons on each carbon atom

• the sigma bonds around each carbon atom

• the four electron regions around each carbon atom

• the sp³ hybridised orbitals on each carbon atom

How many electron regions are around each of the carbon atoms in a molecule of ethene?

• 3

• 4

• 6

• 2

Tags

NGSS.HS-PS1-1