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Question

The dipole moment of HBr is 0.78 ×1018 esu cm and interatomic spacing is 1.41 ˚A The % ionic character of HBr is?

A
7.5
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B
11.
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C
15
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D
27
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Solution

The correct option is B 11.
D= charge × distance
=1.6×1019×1.41×108
=2.256×10273.33×1030
=6.76×102
% of ionic charge= 0.78×1018esu
=0.78
=0.786.76=11% .

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