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Alcohols, Phenols and Ethers

Short Answer Type

151. Sodium metal can be used for drying diethyl ether and benzene but not ethanol. Why?

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152. How does anisole react with Br₂ in CS₂?

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153. How will you distinguish between 1-phenyl ethanol and 2-phenyl ethanol?

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154.

How is phenol obtained from aniline?

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155.
Explain giving reasons, why Phenol has a smaller dipole moment than methanol.

In phenol, there is double bond character between C—O bond and there is +ve charge on oxygen due to electron withdrawing benzene ring, therefore, dipole moment is less whereas in methanol there is no such positive charge, it has more dipole moment than phenol.