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Questions and Answers
Phenol reduce ______ solution and undergo oxidation to quinones.
Phenol reduce ______ solution and undergo oxidation to quinones.
pot.Permanganate
The manganese is reduced from +7, which gives a ______ solution, to +4, which is brown.
The manganese is reduced from +7, which gives a ______ solution, to +4, which is brown.
purple
Add 0.1 g or 0.2 ml (3-4 drops) of the compound to 2 ml of ______ or ethanol.
Add 0.1 g or 0.2 ml (3-4 drops) of the compound to 2 ml of ______ or ethanol.
water
The disappearance of the ______ colour and the formation of brown suspension, which is manganese (II) oxide, at the bottom of the test tube is a positive result for the presence of phenols.
The disappearance of the ______ colour and the formation of brown suspension, which is manganese (II) oxide, at the bottom of the test tube is a positive result for the presence of phenols.
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On adding an excess, a ______ or yellowish – white precipitate of a poly bromo-derivative is produced with all except hydroquinone and α and β naphthol.
On adding an excess, a ______ or yellowish – white precipitate of a poly bromo-derivative is produced with all except hydroquinone and α and β naphthol.
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