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Tardigrade
Question
Chemistry
The decreasing order of bond angles in BF3 , NH3 , PF3 and I3- is
Q. The decreasing order of bond angles in
B
F
3
,
N
H
3
,
P
F
3
and
I
3
−
is
4205
150
JEE Main
JEE Main 2018
Chemical Bonding and Molecular Structure
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A
I
3
−
>
N
H
3
>
P
F
3
>
B
F
3
17%
B
I
3
−
>
B
F
3
>
N
H
3
>
P
F
3
42%
C
B
F
3
>
I
3
−
>
P
F
3
>
N
H
3
16%
D
B
F
3
>
N
H
3
>
P
F
3
>
I
3
−
24%
Solution:
The shape of the given molecules is as follows:
B
F
3
: Planar triangle with bond angles of
12
0
∘
.
N
H
3
: Trigonal pyramidal with bond angles of
10
7
∘
.
I
3
−
: Linear with bond angles
18
0
∘
.
P
F
3
: Trigonal pyramidal with bond angles of
97.
8
∘
.