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In Libermann's Test, what is the role of sulfuric acid in the reaction mixture?

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Important Questions on Organic Qualitative Analysis

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Chemistry>Practical Chemistry>Organic Qualitative Analysis>Lab Activity: Test for Phenol
Cotyledons are also called-
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Chemistry>Practical Chemistry>Organic Qualitative Analysis>Lab Activity: Test for Phenol

Why is it important to conduct a preliminary test for phenol in a laboratory setting?

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Chemistry>Practical Chemistry>Organic Qualitative Analysis>Lab Activity: Test for Phenol
What is the purpose of adding alkaline β-naphthol in Libermann's Test?
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Chemistry>Practical Chemistry>Organic Qualitative Analysis>Lab Activity: Test for Phenol

Why is it important to filter the solution after adding sodium hydroxide to ferric chloride when preparing a neutral ferric chloride solution?

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Chemistry>Practical Chemistry>Organic Qualitative Analysis>Lab Activity: Test for Phenol

Which reagent can be used to test for the presence of phenol in a given sample?