Diatomic molecule has a dipole moment of `1.2D` If its bond `1.0 Å` what fraction of an electronic charge exists on each atom ? .

Options

A. 25% of e
B. 50% of e
C. 60% of e
D. 75% of e

Answer

A

Explanation

`delta = ("Dipole moment")/(d)`
`= (1.2 D)/(1.0 xx 10^(-8) cm)`
` = (1.2 xx 10^(-9) esu cm)/(1.0 xx 10^(-8) cm)`
`= 1.2 xx 10^(-8) esu`
The fraction of electronic charge, e is
` = (1.2 xx 10^(-10) esu)/(4.8 xx 10^(-10) esu//e)`
`= 0.25 e`
`= 25%` of e