Question 1

Which of the following molecules has a linear molecular geometry according to VSEPR theory?

Accepted Answer

BeH\_2

Question 2

What is the ideal bond angle in a molecule with a tetrahedral geometry, such as CH\_4?

Accepted Answer

$$109.5^\circ$$

Question 3

Which molecule below is expected to have a trigonal planar geometry?

Accepted Answer

BF\_3

Question 4

A molecule of SF\_6 has six terminal atoms. What is its ideal molecular geometry?

Accepted Answer

Octahedral

Question 5

Which of the following molecules is nonpolar due to its ideal geometry, even though it contains polar bonds?

Accepted Answer

CO\_2

Question 6

Predict the geometry around the central atom for H\_2CO (formaldehyde).

Accepted Answer

Trigonal planar

Question 7

Which molecule has a trigonal bipyramidal geometry?

Accepted Answer

PCl\_5

Question 8

What is the effect of lone pairs on the geometry of NH\_3 compared to the ideal tetrahedral geometry?

Accepted Answer

It becomes trigonal pyramidal

Question 9

Which of the following best describes the geometry of H\_2O?

Accepted Answer

Bent

Question 10

Which molecule would you expect to have a net dipole moment?

Accepted Answer

H\_2O

Question 11

Which of the following molecules is expected to be polar due to its geometry?

Accepted Answer

NH\_3

Question 12

What is the molecular geometry of H\_2S?

Accepted Answer

Bent

Question 13

Which of the following molecules has a square planar geometry?

Accepted Answer

XeF\_4

Question 14

Which statement best explains why CO\_2 is nonpolar even though it contains polar bonds?

Accepted Answer

The molecule is linear, so dipoles cancel

Question 15

Which molecule has the largest number of terminal atoms in its ideal geometry?

Accepted Answer

SF\_6

Question 16

Which of the following molecules is expected to have a bond angle closest to $$120^\circ$$?

Accepted Answer

BF\_3

Question 17

A molecule has four electron domains around the central atom, two of which are lone pairs. What is its molecular geometry?

Accepted Answer

Bent

Question 18

Which molecule is expected to have a trigonal pyramidal geometry due to the presence of a lone pair?

Accepted Answer

NH\_3

Question 19

Which of the following molecules is expected to be nonpolar due to its symmetry?

Accepted Answer

CH\_4

Question 20

Which molecule has a central atom with sp\^3d\^2 hybridization?

Accepted Answer

SF\_6

VSEPR Theory: Ideal and Non-Ideal Molecular Geometries

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