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Byju's Answer
Standard XII
Chemistry
Introduction to p Block Elements
Why does BF3 ...
Question
Why does BF
3
have a larger bond angle than IF
3
even though IF
3
has 2 electron pairs?
Open in App
Solution
F
i
n
d
t
h
e
h
y
b
r
i
d
i
s
a
t
i
o
n
o
f
B
F
3
a
n
d
I
F
3
.
F
o
r
B
F
3
H
=
1
2
[
N
o
o
f
v
a
l
e
n
c
e
e
l
e
c
t
r
o
n
o
f
t
h
e
c
e
n
t
r
a
l
m
e
t
a
l
a
t
o
m
+
n
o
o
f
s
u
r
r
o
u
n
d
i
n
g
a
t
o
m
-
c
a
t
i
o
n
+
a
n
i
o
n
]
=
1
2
[
3
+
3
-
0
+
0
]
=
3
=
s
p
2
(
p
l
a
n
a
r
t
r
i
g
o
n
a
l
)
L
P
=
H
-
n
o
o
f
s
u
r
r
o
u
n
d
i
n
g
a
t
o
m
=
3
-
3
=
0
F
o
r
I
F
3
H
=
1
2
[
N
o
o
f
v
a
l
e
n
c
e
e
l
e
c
t
r
o
n
o
f
t
h
e
c
e
n
t
r
a
l
m
e
t
a
l
a
t
o
m
+
n
o
o
f
s
u
r
r
o
u
n
d
i
n
g
a
t
o
m
-
c
a
t
i
o
n
+
a
n
i
o
n
]
=
1
2
[
7
+
3
-
0
+
0
]
=
5
=
s
p
3
d
(
p
l
a
n
a
r
b
i
p
y
r
a
m
i
d
)
L
P
=
H
-
n
o
o
f
s
u
r
r
o
u
n
d
i
n
g
a
t
o
m
=
5
-
3
=
2
T
h
e
b
o
n
d
a
n
g
l
e
i
n
s
p
2
h
y
b
r
i
d
i
s
a
t
i
o
n
s
h
a
p
e
i
s
120
0
a
n
d
i
n
I
F
3
,
i
t
s
h
a
v
i
n
g
t
w
o
a
n
l
g
e
t
h
r
e
e
F
w
i
t
h
120
0
a
n
d
o
t
h
e
r
t
w
o
l
o
n
e
p
a
i
r
w
i
t
h
90
0
T
h
a
t
i
s
w
h
y
B
F
3
i
s
h
a
v
i
n
g
h
i
g
h
e
r
b
o
n
d
a
n
g
l
e
.
Suggest Corrections
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