Explain why is O=C=O nonpolar while R—O—R is polar.
O=C=O nonpolar because the dipole moment of the two C=O bonds are exactly equal and opposite of each other. Therefore, they cancel each other and so, the net dipole moment of O=C=O is zero. Whereas, the net dipole moment of R—O—R is not equal to zero because the shape of this compound is non-linear and thus, R—O—R is polar in nature.
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A statement of assertion followed by a statement of reason is given. Choose the correct answer out of the option given below each equation.
Assertion : Bond angle in ethers is slightly less than the tetrahedral angle.
Reason : There is repulsion between the two bulky (—R) groups.
Chemistry - Exemplar
Ethers can be prepared by Williamson synthesis in which an alkyl halide is reacted with sodium alkoxide. Explain why di-tert-butyl ether can’t be prepared by this method.Chemistry - Exemplar