Ncert Exercises & Solutions

Explain why is $O = C = O$ non-polar while R—O—R is polar?

is a linear molecule. The dipole moment of two C= O bonds are equal and opposite and they cancel each other and hence the dipole moment of

{CO}_{2}

is zero and it is a non-polar molecule.

While for ethers, two dipoles are pointing in the same direction. These two dipoles do not cancel the effect of each other. Therefore, there is a finite resultant dipoles and hence R—O—R is a polar molecule.

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