Question -
The dipole moment of H - Br molecule is 2.6×10−30 coulomb.metre. Its bond length is 1.3˚A Then, the percentage ionic character of H - Br bond is:
Options:
A .  20%
B .  16%
C .  21.5%
D .  12.5%
Answer: Option D : D % of ionic character = dipole moment(observed)/ calculated value × 100 Calculated dipole moment = charge × distance, charge as you know is 1.6×10−19 C
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