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  • Although both CO_2 and H_2O are triatomic molecules, the shape of H_2O molecule is bent while that of CO_2 is linear. Explain this on the basis of dipole moment.

Q. 4.15     Although both CO_{2}  and  H_{2}O  are triatomic molecules, the shape of H_{2}O  molecule is bent while that of  CO_{2}  is linear. Explain this on the basis of dipole moment.

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H2O molecule, which has a bent structure, the two O–H bonds are oriented at an angle of 104.50. Net dipole moment of 6.17 × 10–30 C m is the resultant of the dipole moments of two O–H bonds.

While on the other hand. The dipole moment of carbon dioxide is zero. This may be because of linear shape of the molecule as it has two C-O bonds which has opposite dipole moments cancelling each other.

Posted by

Divya Prakash Singh

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