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H(2)O has a net dipole moment while BeF(...

`H_(2)O` has a net dipole moment while `BeF_(2)` has zero dipole moment because :

A

`H_(2)O` molecule is linear while ` BeF_(2)` is bent

B

` BeF_(2)` molecule is linear while ` H_(2) O` is bent

C

Fluorine has more electronegativity than oxygen

D

Beryllium has more electronegativity then oxygen .

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The correct Answer is:
b
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H_2O has net dipole moment while BeF_2 has zero dipole moment because

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. NH_3 has a net dipole moment, while BF_3 has zero dipole moment because

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. H_2O has a dipole moment while BeF, has zero dipole moment because

Which molecules has zero dipole moment ?

Experiment shows that H_(2)O has a dipole moment while CO_(2) has not . Point out the structure which best illustrate these facts

MARVEL PUBLICATION-NATURE OF CHEMICAL BOND -TEST YOUR GRASP
  1. H(2)O has a net dipole moment while BeF(2) has zero dipole moment beca...

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  2. Which of the following does not follow the octet rule ? .

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  3. The stability of ionic crystal depends principally on

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  4. Which of the following statements about LiC and NaCl is wrong?

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  5. Which of the following bonds is the strongest ? .

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  6. Which of the following is the correct electron-dot structure of N2O mo...

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  7. Which of the following molecule has highest dipole moment?

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  8. Which of the following molecule has highest dipole moment?

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  9. The correct order of decreasing polarity is

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  10. In an ionic compound A^(+) X^(-) the degree of covalent bonding is gre...

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  11. According to Fazan rule, the covalent bond is favoured by :

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  12. Out of CHCl(3), CH(4) and SF(4) the molecules do not having regular ge...

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  13. Which out of the following structures is expected to have three bond p...

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  14. A molecule XY(2) contains two sigma bonds two pi bond and one lone pai...

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  15. N atom in NH(4)^(+) involves the hybridizations

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  16. A hybrid orbital formed from s and p-orbital can contribute to

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  17. The state of hybridization of the central atom is not the same as in t...

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  18. The d-orbitals involved in dsp^2 hybridisation is

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  19. Which of the following molecules in planar ?

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  20. The number of sp^2-s sigma bonds in benzene are

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  21. The bond angle in H2O is nearly 105^@ whereas bond angle in H2 S is ne...

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