Question 1

What is the VSEPR theory used to predict?

Accepted Answer

Molecular Shape

Answer

Polarity

Answer

Electronegativity

Answer

Bond Strength

Question 2

A lone pair is defined as

Accepted Answer

A pair of non-bonding electrons

Answer

One non-bonding electron

Answer

A pair of bonding electrons

Answer

A pair of electrons on the central atom

Question 3

Which of the following shapes has an unshared pairs of electrons on the central atom?

Accepted Answer

Bent

Answer

Bipyramidal

Answer

Tetrahedral

Answer

Trigonal Planar

Question 4

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

Accepted Answer

Pairs of valence electrons

Answer

Inner shell electrons

Answer

Mobile Electrons

Answer

Electrons closest to the nucleus

Question 5

Which molecule would have this molecular geometry?

Accepted Answer

CO2

Answer

PCl5

Answer

BF3

Answer

CH4

Question 6

What molecule could this be?

Accepted Answer

H2S

Answer

CH4

Answer

CO2

Answer

PCl5

Question 7

What molecule could this be?

Accepted Answer

CH4

Answer

H2O

Answer

BF3

Answer

CO2

Question 8

What molecular geometry would PH3 have?

Accepted Answer

Trigonal Pyramidal

Answer

Linear

Answer

Trigonal Bipyramidal

Answer

Bent

Question 9

How many lone pairs of electrons are on the N atom in NH3

Accepted Answer

1

Answer

2

Answer

3

Answer

5

Question 10

The number of valence electrons can be identified by

Accepted Answer

group number

Answer

atomic radius

Answer

atomic number

Answer

ionization energy

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