stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Molecular Geometry Flashcards | StudBud
Explore
/
Molecular Geometry
Molecular Geometry
25 terms
·
StudBud Administration
·
248 plays
Its for extra credit
Flashcards
25 cards
F
Practice quiz
P
Host live
L
Questions
25
Answers
1
Using molecular orbital theory, determine whether F
2
, F
2
−
, or F
2
2−
would have the weakest bond.
all have the same strength
F2-
F2-2
F2
2
What is the molecular geometry of SCN
-
?
square pyramidal
trigonal planar
trigonal pyramidal
linear
3
How many pi bonds does formaldehyde H
2
CO
have?
3
1
0
2
4
How many pi bonds does CO
2
have?
1
2
0
3
5
Which of the following molecules is nonpolar?
PH3
SF4
KSCN
XeBr2
6
Indicate the number of e- domains about a central atom, given the angle 109.5 between them.
6 only
4 only
4 (or 6 when more than one 180° angle is present)
4 (or 5 when 120° angles are present)
7
What is the molecular shape of XeF
4
?
Square Planar
Trigonal Pyramidal
Seesaw
T-shape
8
Which of the following statements is true about polarity?
All of the above are true statements.
A nonpolar molecule has only nonpolar bonds.
The shape is important in determiningthe polarity
All molecules with polar bonds are polar.
9
Indicate the number of electron domains about a central atom, given the angle 120 between them.
3 only
5 only
5 (or 3 if 90° angles are also present)
3 (or 5 if 90° angles are also present)
10
Using molecular orbital theory, determine the magnetism of O
2
and O
2
−
.
O2 is paramagnetic; O2− is diamagnetic.
Both O2 and O2− are paramagnetic.
Both O2 and O2− are diamagnetic.
O2 is diamagnetic; O2− is paramagnetic.
11
What is the maximum number of sigma bonds that a central atom with
sp
3
d
hybridization can form?
2
4
3
5
12
How many sigma bonds can an atom with valence configuration 3
s
2
3
p
3
make
without
hybridization?
5
2
3
4
13
Using molecular orbital theory, determine the bond order for Li
2
+
.
0
1
1/2
1 1/2
14
How many sigma bonds does SO
3
have?
0
2
3
1
15
What is the electron domain of CO
3
2-
?
tetrahedral
square pyramidal
octahedral
trigonal planar
16
Which of the following is a false statement about double bonds?
A double bond consists of one σ bond and one π bond.
A double bond is stronger than a single bond.
The length of a double bond is greater than a single bond.
A double bond has restricted rotation.
17
What is the molecular geometry of ClO
3
-
?
trigonal planar
trigonal pyramidal
square pyramidal
linear
18
What is the electron domain of IF
5
?
square pyramidal
octahedral
tetrahedral
square planar
19
Determine the geometry around the oxygen atom and the molecular polarity of dimethyl ether:
linear; nonpolar
bent; nonpolar
bent; polar
linear; polar
20
How many sigma bonds does CO
have?
1
3
0
2
21
Indicate the number of electron domains about a central atom, given the angle 180 between them.
5 when 120° angles are present
2
all in the list are correct
6 when more than one 180° angle is present
22
What is the electron domain of SnCl
3-
?
trigonal planar
tetrahedral
octahedral
square pyramidal
23
What are the H–N–H bond angles in NH
3
?
~90°
~180°
>109.5°
<109.5°
24
What is the hybridization of the nitrogen atom in ammonia?
sp3d
sp2
sp
sp3
25
Indicate the number of electron domains about a central atom, given the angle 90 between them.
6 (or 5 if 90° angles are also present)
6 (or 5 if 120° angles are also present)
4 (or 5 if 120° angels are also present)
5 (or 6 if 180° angels are also present)
