Pretest

Question 1

A molecule that has a linear shape has two electron domains around the central atom. How many lone pairs of electrons are present around the central atom?

Revolt · Accepted Answer

A: zero

Question 2

Which molecule has a trigonal planar shape?

Revolt · Accepted Answer

C: boron trichloride

Question 3

By examining electron domain geometry, one can determine that the ammonia molecule open paren NH sub 3 close paren has

Revolt · Accepted Answer

A: four  s p cubed   orbitals.

Question 4

What is the molecular shape of HCN ?

Revolt · Accepted Answer

C: linear

Question 5

The shape of a molecule is trigonal planar. How many electron domains around the central atom does this molecule most likely have?

Revolt · Accepted Answer

C: three

Question 6

The shape of a molecule is tetrahedral. How many lone pairs are most likely on the central atom?

Revolt · Accepted Answer

A: zero

Question 7

If all of the bonding electrons in a molecule are bonded in two hybrid sp orbitals, which shape does the molecule most likely have?

Revolt · Accepted Answer

B: linear

Question 8

If a molecule has four hybrid sp cubed orbitals, it can be concluded that the molecule has a

Revolt · Accepted Answer

A: tetrahedral electron domain geometry.

Question 9

Which is most likely an example of an angular molecule?

Revolt · Accepted Answer

A: cap h sub 2 cap o

Question 10

A molecule has two atoms that are bonded to the central atom and one lone pair of electrons around this central atom. What is the shape of the molecule?

Revolt · Accepted Answer

C: bent

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