Shapes, Hybridization, & Sigma/Pi Bonds

Question 1

For a see-saw molecule, how many bonds and unshared pairs are on the central atom?

Answer 1

4 bonds, 1 unshared pair

Question 2

A double bond consists of how many sigma & pi bonds?

Answer 2

1 sigma & 1 pi

Question 3

What is the shape & bond angles of a molecule with 4 electron domains (all bonds) around a central atom?

Answer 3

Tetrahedral 109.5

Question 3

What is the shape & bond angles of a molecule with 4 electron domains of which 1 is an unshared pair around a central atom?

Answer 3

Tri-pyramid,

Question 3

What is the shape & bond angles of a molecule with 5 electrpon domains (all bonds) around a central atom?

Answer 3

Triangular Bipyramidal, 90 & 120 & 180

Question 5

What is the shape & bond angles of a molecule with 3 atoms around a central atom?

Answer 5

Tr-planar, 120

Question 6

What shape is BeCl2?

Answer 6

Linear

Question 7

What shape is PH3?

Answer 7

Tri-pyramidal

Question 8

What is the shape & bond angles of a molecule with 4 atoms & 1 unshared pair around a central atom?

Answer 8

See-Saw, <180

Question 8

What shape is BF3?

Answer 8

Tri-planar

Question 8

What shape is PF5?

Answer 8

Triangular Bipyramidal

Question 9

What is the shape & bond angles of a molecule with 6 atoms around a central atom?

Answer 9

Octahedral (Square Bipyramidal), 90 & 180

Question 10

What shape is CF4?

Answer 10

Tetrahedral

Question 11

What is the shape & bond angles of a molecule with 2 atoms & 2 unshared pair around a central atom?

Answer 11

Bent,

Question 11

For a triangular bipyramidal molecule, how many bonds and unshared pairs are on the central atom?

Answer 11

5 bonds, 0 unshared pairs

Question 11

For a square planar molecule, how many bonds and unshared pairs are on the central atom?

Answer 11

4 bonds, 2 unshared pair

Question 12

What shape is SeBr4?

Answer 12

See-saw

Question 13

For a octahedral (or square bipyramidal) molecule, how many bonds and unshared pairs are on the central atom?

Answer 13

6 bonds, 0 unshared pair

Question 14

For a square bipyramidal molecule, how many bonds and unshared pairs are on the central atom?

Answer 14

5 bonds, 1 unshared pair

Question 15

For a linear molecule that has some unshared e- pairs on the central atom, how many bonds and unshared pairs are there on that central atom?

Answer 15

2 bonds, 3 unshared pair

Question 16

What is the shape & bond angles of a molecule with 2 atoms & 1 unshared pair around a central atom?

Answer 16

Bent,

Question 18

For a tetrahedral molecule, how many bonds and unshared pairs are on the central atom?

Answer 18

4 bonds, 0 unshared pairs

Question 20

What is the shape & bond angles of a molecule with 4 atoms & 2 unshared pair around a central atom?

Answer 20

Square Planar, 90 & 180

Question 21

What shape is ClF3?

Answer 21

T

Question 23

What is the shape & bond angles of a molecule with 3 atoms & 2 unshared pair around a central atom?

Answer 23

T ,

Question 24

What shape is SF6?

Answer 24

Octahedral (or square bipyramidal)

Question 25

For a triangular planar molecule, how many bonds and unshared pairs are on the central atom?

Answer 25

3 bonds, 0 unshared pairs

Question 27

What is the shape & bond angles of a molecule with 5 atoms & 1 unshared pair around a central atom?

Answer 27

Square Pyramidal,

Question 28

For a T-shaped molecule, how many bonds and unshared pairs are on the central atom?

Answer 28

3 bonds, 2 unshared pair

Question 28

A triple bond consists of how many sigma & pi bonds?

Answer 28

1 sigma & 2 pi

Question 29

How many sigma & pi bonds in a molecule with 4 single bonds, 2 double bonds, and 3 unshared pairs?

Answer 29

6 sigma, 2 pi

Question 30

For a triangular pyramidal molecule, how many bonds and unshared pairs are on the central atom?

Answer 30

3 bonds, 1 unshared pair

Question 31

What shape is KrF4?

Answer 31

Square Planar

Question 33

What shape is SF2?

Answer 33

Bent (

Question 34

What shape is XeF2?

Answer 34

Linear (2 bonds, 3 unshared pairs)

Question 36

What shape is IBr5?

Answer 36

Square pyramidal

Question 37

For a bent molecule with bond angle of

Answer 37

2 bonds, 2 unshared pair

Question 38

How many sigma & pi bonds in a molecule with 8 single bonds, 1 double bond, 1 triple bond and 4 unshared pairs?

Answer 38

10 sigma, 3 pi

Question 39

What shape is SO2?

Answer 39

Bent (

Question 40

For a bent molecule with bond angle of

Answer 40

2 bonds, 1 unshared pair

Question 41

What is the shape & bond angles of a molecule with 2 atoms & 3 unshared pair around a central atom?

Answer 41

Linear, 180