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Standard XII
Chemistry
Scales of Electronegativity
18. Dipole mo...
Question
18. Dipole moment ofHCL=1.03D,HI=0.38DHCL=1.03D,HI=0.38D. Bond length ofHCL=1.3AHCL=1.3AandHI=1.6AHI=1.6A. The ratio of fraction of an electric charge,δ δ , existing on each atom in HCl and HI is : (1)1.2:1(3)3.3:1(2)2.7:1(4)1:3.3
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Q.
Compare the partial positive charge on H-atoms of
H
−
C
l
with
H
−
I
respectively. Given the dipole moment of
H
C
l
and
H
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is 1.03 D and 0.38 D. Also
H
−
C
l
and
H
−
I
bond distance are 127 pm amd 161 pm respectively.
(Given: 1 D =
10
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18
esu
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Q.
What fraction of charge is present on
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in covalently bonded
δ
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−
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if the dipole moment of
H
I
is
0.38
D
and the bond length is
1.61
˚
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?
Q.
Calculate the percentage ionic character of
H
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l
molecule. The bond length is
1.275
A
o
and observed dipole moment is
1.03
D
.
Q.
The bond length of
H
C
l
molecule is
1.275
˚
A
and its dipole moment is
1.03
D
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=
4.8
×
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e
s
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Q.
The observed dipole moment of
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1.61
˙
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