Question : Alcoholic (-OH) group can be identified by:
Option 1: Tollen's Reagent Test
Option 2: Esterification Test
Option 3: FeCl3 Test
Option 4: Ozonolysis Reaction
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Correct Answer: FeCl3 Test
Solution : The correct option is FeCl3 Test.
The presence of alcholic group (-OH) can be identified by Ferric Chloride Test where reagent is a solution of anhydrous iron(III) chloride FeCl3 in an organic solvent like chloroform or carbon tetrachloride. Phenols react with FeCl3 solution to give a coloured complex. Alcohols do not give this reaction.
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Option 1: Na2So4 .10H2O
Option 2: NaHCO3
Option 3: Na2CO3.10H2O
Option 4: Ca(OH)2
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Option 2: Reducing property
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Option 3: CH3COCH3
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