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प्रश्न
Dipole moment of phenol is smaller than that of methanol. Why?
उत्तर
In phenol, C – O bond is less polar due to electron-withdrawing effect of benzene ring, whereas in methanol C – O bond is more polar due to electron releasing effect of –CH3 group. Hence, the dipole moment of phenol (1.54 D) is smaller than that of methanol (1.71 D).
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संबंधित प्रश्न
Give simple chemical test to distinguish between Ethanol and Phenol.
Wood spirit is known as acetone:
Phenol can be distinguished from ethanol by the reactions with:
(i) \[\ce{Br2/water}\]
(ii) \[\ce{Na}\]
(iii) Neutral \[\ce{FeCl3}\]
(iv) All the above
Suggest a reagent for conversion of ethanol to ethanal.
Suggest a reagent for conversion of ethanol to ethanoic acid.
Arrange the following compounds in increasing order of acidity and give a suitable explanation.
Phenol, o-nitrophenol, o-cresol
The carbon-oxygen bond in phenol is slightly stronger than that in methanol. Why?
Arrange water, ethanol and phenol in increasing order of acidity and give reason for your answer.
Assertion: Ethanol is a weaker acid than phenol.
Reason: Sodium ethoxide may be prepared by the reaction of ethanol with aqueous \[\ce{NaOH}\].
Write chemical reactions of following reagents on methoxyethane:
dilute H2SO4
