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Although both CO2 and H2O are triatomic molecules, the shape of H2O mo...

Although both CO2 and H2O are triatomic | Class 11 Chemistry Chapter Chemical Bonding and Molecular Structure, Chemical Bonding and Molecular Structure NCERT Solutions

Question:

Although both CO₂ and H₂O are triatomic molecules, the shape of H₂O molecule is bent while that of CO₂ is linear. Explain this on the basis of dipole moment.

Answer:

Dipole moment is the product of the magnitude of the positive or negative charge (q) and the distance (d) between the charges, i.e.

μ = q x d.

The SI unit is coulomb metre. The molecule with symmetrical and linear geometries have zero dipole moment because they are vector in nature and the dipole of different bonds cancel with one another. CO₂ is symmetrical and has dipole moment 0. Therefore it will have a linear shape with bond angle 180°.

Resultant μ = 0 D

H₂O is a unsymmetrical molecule and bent geometries, the geometries have specific dipole moment (1.84D) because the bond polarities do not cancel each other. Therefore H₂O will have a bent structure with bond angle 104°.

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Comments

sasi
2019-10-12 11:49:51

ninte thantha

Soumya Srivastava
2019-03-10 23:39:20

Thank you

Soumya
2019-02-27 12:40:24

sana
2019-02-15 19:28:48

Thank you so much

Ashutosh Kumar
2019-02-15 11:38:29

Thank you so much

Lalit
2018-11-02 20:11:52

Very very nice explainatio are given

Amar Bajpai
2018-08-15 21:03:31

Help full

Yuvraj
2018-07-28 05:41:53

Nice and helpful

sana
2017-10-01 14:02:18

thanks i got my doubt cleared your website is really good

Team saralstudy
2017-09-29 13:51:01

Hi Sana, We are not getting your point but still you can ask your query through the same comment box or you can mail us too. Team saralstudy

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Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 15: Although both CO2 and H2O are triatomic molecules, the shape of H2O molecule is bent while that of C....

Although both CO2 and H2O are triatomic | Class 11 Chemistry Chapter Chemical Bonding and Molecular Structure, Chemical Bonding and Molecular Structure NCERT Solutions

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