151.Sodium metal can be used for drying diethyl ether and benzene but not ethanol. Why?
Diethyl ether and benzene does not have any replaceable alpha hydrogen. On other hand in ethanol have replaceable hydrogen atom therefore, reacts with sodium.
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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.
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156.
If an alcohol is treated with excess of sulphuric acid, no esterification takes place. Why?
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157.
How many sigma bonds are present in 3-methyl phenol?
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158.Give the equation of the reaction of bromine in carbon disulphide with phenol.
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159.
Ethanol and chloro ethane both are polar in nature yet ethanol is miscible in water while chloro ethane is immiscible. Explain.
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