The molecule which has zero dipole moment is :a. CH2CI2b. BF3c. NF3d. CIO2

(b) TIPS/Formulae : Dipole moment of compound having regular geometry and same type of atoms is zero. It is vector quantity. The zero dipole moment of BF3 is due to its symmetrical (triangular planar) structure. The three fluorine atoms lie at the corners of an equilateral triangle with boron at the centre. NOTE : The vectorial addition fo the dipole moment of the three bonds gives a net sum of zero because the resultant fo any two dipole moments is equal and opposite to the third. The dipole moment of NH3 is 1.46 D indicating its unsymmetrical structure. The dipole moment of CH2CI2 (the molecule uses sp3 hybridisation but is not symmetric) is 1.57D Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:Table Normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibri,sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Times New Roman; mso-bidi-theme-font:minor-bidi;}

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Physical Chemistry> The molecule which has zero dipole moment...

The molecule which has zero dipole moment is :
a. CH₂CI₂
b. BF₃
c. NF₃
d. CIO₂

Shane Macguire , 12 Years ago

Grade upto college level

3 Answers

Deepak Patra

(b) TIPS/Formulae : Dipole moment of compound having regular geometry and same type of atoms is zero. It is vector quantity.

The zero dipole moment of BF₃ is due to its symmetrical (triangular planar) structure. The three fluorine atoms lie at the corners of an equilateral triangle with boron at the centre.

NOTE : The vectorial addition fo the dipole moment of the three bonds gives a net sum of zero because the resultant fo any two dipole moments is equal and opposite to the third. The dipole moment of NH₃ is 1.46 D indicating its unsymmetrical structure. The dipole moment of CH₂CI₂ (the molecule uses sp³ hybridisation but is not symmetric) is 1.57D

Last Activity: 12 Years ago

MD MANSUR ANSARI

Zero dipole moment is the dipole moment between two atoms being zero. It depends on the polarities of individual bonds and the geometry of the atoms

Last Activity: 7 Years ago

Kushagra Madhukar

Dear student,

Please find the answer to your question.

The answer is b) BF₃

This is due to the symmetrical (triangular planar) structure of BF₃. The three fluorine atoms lie at the corners of an equilateral triangle with boron at the centre.

Thanks and regards,

Kushagra

Last Activity: 5 Years ago