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A diatomic molecule has dipole moment ...

A diatomic molecule has dipole moment of `1.2 D`. If the bond distance is `1 Å` what parcentage of covalent in the molecule is

Text Solution

Verified by Experts

The correct Answer is:
25
`mu = e xx d`
`therefore e = mu/d = (1.2 D)/(1.0 A) = (1.2 xx 10^(-18))/(1.0 xx 10^(-8)) cm`
`=1.2 xx 10^(-10)` esu
Percentage of electronic charge
`=(1.2 xx 10^(-10))/(4.8 xx 10^(-10)) esu xx 100 = 25%`
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A diatomic molecule has a dipole moment of 1.2 D. If the bond distance is 1.0Å , what fraction on an electronic charge, e, exists on each atom?

A diatomic molecule has a dipole moment of 1.2 D. If its bond distance is 1.0 Å, what fraction of an electronic charge, e, exists on each atom? ( 1 D = 10^(-18) esu cm and e = 4.8 xx 10^(-10) esu)

Knowledge Check

  • Which molecules has zero dipole moment ?

    A
    `H_(2)O`
    B
    `CO_(2)`
    C
    `HF`
    D
    `HBr`

  • A diatomic molecule has a dipole moment of 1.2 D. If its distance is 1.0 Å, what fraction of an electronic charge, e exist on each atom?

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

  • A polar covalent bond with positive and negative charge centres at its ends is called a dipole. The polarity of a dipole is measured by its dipole moment. Mathematically it is expressed as dipole moment, mu=q xx d where q and d are the net charge and the distance between the two charges respectively. Dipole moment is a vector quantity. The net dipole moment of a polyatomic molecule is the resultant of the various bond moments present in the molecule. The values of dipole moment are expressed in Debye (D) or in SI units in terms of coulomb- metre (Cm). One of the most important applications of dipole moment is in the determination of geometry and shape of molecules besides prediction of a number of properties of the molecules. A diatomic molecule has a dipole of 1.2 D, if the bond distance is 1 Ã…, what percentage of electronic charge exists on each atom.

    A
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    B
    29% of e
    C
    19% of e
    D
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