The dipole moment of NaCl molecule is 8.4D and its bond length is 2.1∘A. The percentage ionic character in this molecule will be:
A
50.25%
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B
60.30%
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C
83.33%
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D
100%
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Solution
The correct option is C83.33% Given, μobserved=8.4D Bond length =2.1∘A Theoretical dipole moment,μtheoratical=e×distance=(4.8×10−10)×(2.1×10−8)e.s.u cm =10.08×10−18e.s.u×cm =10.08D Percentage ionic character =μobservedμtheoratical×100=8.410.08×100 =83.33%