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Question

The dipole moment of H - Br molecule is 2.6×1030 coulomb.metre. Its bond length is 1.3˚A Then, the percentage ionic character of H - Br bond is:


A

20%

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B

16%

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C

21.5%

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D

12.5%

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Solution

The correct option is D

12.5%


% of ionic character = dipole moment(observed)/ calculated value × 100

Calculated dipole moment = charge × distance, charge as you know is 1.6×1019 C

Chemistry

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