Shapes of Molecules

One molecule of Hydrogen Gas possesses which molecule shape?

• Tetrahedral

• Linear

• Trigonal Planar

Predict the bond angle in a BF3 molecule.

• 120 degrees.

• 180 degrees.

• 109.5 degrees.

Which of these images is an example of a octahedral molecule?

A trigonal bipyramid contains which two angles between it's bonds?

• 120 and 90 degrees

• 109.5 and 90 degrees

• 180 and 90 degrees

• 120 and 180 degrees

Describe the shape and bond angle of a methane molecule.

• Tetrahedral with 109.5 degrees bond angles

• Trigonal bipyramid with 120 degrees bond angles

• Linear with 180 degrees bond angles

Why does a water molecule have a bond angle of 104.5 degrees?

• The molecule is a tetrahedral.

• The two lone pairs of electrons on the atom of oxygen repel the bonded electron pairs more.

• The bonded pair of electrons repel the two lone pairs more.

How many lone pairs does an ammonia molecule possess?

• 2

• 1

• 3

• 5

• 4

Select the correct statement.

• Lone Pair/Lone Pair > Bonded Pair/Lone Pair > Bonded Pair/Bonded Pair

• Bonded Pair/Bonded Pair > Bonded Pair/Lone Pair > Lone Pair/Lone Pair

• Bonded Pair/Lone Pair < Bonded Pair/Bonded Pair > Lone Pair/Lone Pair

How many bonded electron pairs must there be around the central atom of a compound for the molecule's shape to be a Octahedral?

• 5

• 4

• 6

• 8

Name the theory that explains the reason for the shape of molecules.

• The electron repulsion theory

• Bond theory

• The theory of shapes