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प्रश्न
Give simple chemical test to distinguish between Ethanol and Phenol.
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उत्तर
Phenol is unsaturated aromatic alcohol, while ethanol is saturated aliphatic alcohol.
Ethanol reacts with triiodomethane (iodoform test) and forms the yellow precipitate, while phenol does not give this test.
Phenol has benzene ring, it undergoes diazo coupling reaction, while ethanol does not give this test.
Phenol decolorises bromine solution showing it is an unsaturated compound while ethanol does not decolorize bromine solution showing it is a saturated compound.
With neutral FeCl3, phenol forms violet complex while ethanol does not.
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संबंधित प्रश्न
If ethanol dissolves in water, then which of the following would be observed:
Phenol is less acidic than ______.
What is denatured alcohol?
Suggest a reagent for conversion of ethanol to ethanal.
Suggest a reagent for conversion of ethanol to ethanoic acid.
The carbon-oxygen bond in phenol is slightly stronger than that in methanol. Why?
Match the items of column I with items of column II.
| Column I | Column II | |
| (i) | Methanol | (a) Conversion of phenol to o-hydroxysalicylic acid |
| (ii) | Kolbe’s reaction | (b) Ethyl alcohol |
| (iii) | Williamson’s synthesis | (c) Conversion of phenol to salicylaldehyde |
| (iv) | Conversion of 2° alcohol to ketone | (d) Wood spirit |
| (v) | Reimer-Tiemann reaction | (e) Heated copper at 573 K |
| (vi) | Fermentation | (f) Reaction of alkyl halide with sodium alkoxide |
Liquor poisoning is due to
Alcoholic fermentation is brought about by the action of
3, 3-dimethyl-1-butene was subject to following reactions:
