Q.
The dipole moment of HBr is 1.6×10−30 Coloumb-metre and inter-atomic spacing is 1A˚. The % ionic character of HBr is (nearest integer)
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NTA AbhyasNTA Abhyas 2022Chemical Bonding and Molecular Structure
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Answer: 10
Solution:
Charge of electron =1.6×10−19C
Dipole moment of HBr=1.6×10−30C×m
Inter-atomic space (distance) =1A˚ =1×10−10m
Percentage of ionic character in HBr = inter-atomic distance ×q Dipole moment of HBr×100 =1.6×10−19×10−101.6×10−30×100 =10−30×1029×100 =10−1×100 =0.1×100 =10%