Question

A diatomic molecule has a dipole moment of $1.2D$. If its bond length is equal to ${10}^{-10}$m, then the fraction of an electronic charge on each atom will be:

• A. $42$%
• B. $52$%
• C. $37$%
• D. $25$%

Answer 1

The correct option is D $25$%

$\mu =q\times d$

$1.2\times {10}^{-18}=q\times {10}^{-8}$ cm

$q=\frac{1.2\times {10}^{-18}}{{10}^{-8}}=1.2\times {10}^{-10}$

% charge =$\frac{q}{e}\times 100=\frac{1.2\times {10}^{-10}}{4.8\times {10}^{-10}}\times 100=25$%