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Karnataka Board PUCPUC Science 2nd PUC Class 12

Explain why is O=C =O nonpolar while R−O−R is polar.

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Question

Explain why is \[\ce{O = C =O}\] nonpolar while \[\ce{R - O - R}\] is polar.

Short/Brief Note
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Solution

\[\ce{O = C =O}\] molecule is linear so that the polarities of two C – O bonds get cancelled and the molecule is linear.

Ethers have structures similar to water and have angular or bent structure. Therefore, the polarity of two R – O groups does not get cancelled and these have net dipole moment. Thus, \[\ce{R - O - R}\] is polar.

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Chapter 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [Page 160]

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NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 44 | Page 160

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