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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Phenol can be distinguished from ethanol by the reactions with: (i) BrX2/water (ii) Na (iii) Neutral FeClX3 (iv) All the above

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प्रश्न

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

टीपा लिहा
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उत्तर

(i) \[\ce{Br2/water}\]

(iii) Neutral \[\ce{FeCl3}\]

Explanation:

Ethanol does not give any reaction with neutral \[\ce{FeCl3}\] solution while phenol gives violet colour-neutral \[\ce{FeCl3}\]. When phenol is treated with bromine water, 2, 4, 6-tribromophenol is formed as white precipitate. Ethanol does not react with bromine water.

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पाठ 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [पृष्ठ १५८]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 20 | पृष्ठ १५८

संबंधित प्रश्‍न

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\[\begin{array}{cc}
\phantom{.}\ce{CH3 - CH - CH - CH - CH - CH3}\phantom{}\\
\phantom{......}|\phantom{......}|\phantom{......}|\phantom{.....}|\phantom{........}\\
\phantom{...}\ce{CH3}\phantom{...}\ce{OH}\phantom{...}\ce{C2H5}\phantom{.}\ce{OH}\phantom{...}\end{array}\]


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Match the items of column I with items of column II.

  Column I Column II
(i) Antifreeze used in car engine (a) Neutral ferric chloride
(ii) Solvent used in perfumes (b) Glycerol
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  Column I Column II
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