Which organic compound answers phthalein fusion test? Name the product obtained in phthalein fusion test? Mention the reagents used in phthalein fusion test. Which colour is obtain... Which organic compound answers phthalein fusion test? Name the product obtained in phthalein fusion test? Mention the reagents used in phthalein fusion test. Which colour is obtained when phenol undergoes phthalein fusion test? What is 2,4-DNP reagent used? Which organic compound/Functional group is identified in 2,4-DNP test? What happens when an aldehyde or a ketone is heated with 2,4-DNP reagent? Mention one test for aldehyde. What is Tollen's test? Which organic compound gives a silver mirror when heated with Tollen's reagent? What is Esterification test? Which organic compound answers Esterification test? Mention one simple test to identify a carboxylic acid. What happens when a carboxylic acid is treated with NaHCO3 solution?
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The image contains a series of questions and answers related to organic chemistry tests and reactions, specifically concerning the phthalein fusion test, the 2,4-DNP reagent test, Tollen's test, and esterification tests. Each question asks for detailed information regarding the reagents, products, and the identification of specific organic compounds.
Answer
Phenol forms phenolphthalein in a phthalein fusion test using phenol, phthalic anhydride, and conc. H₂SO₄, producing a pale pink color.
Phenol undergoes the phthalein fusion test to form phenolphthalein. The reagents used are phenol, phthalic anhydride, and concentrated H₂SO₄. It results in a pale pink color. The 2,4-DNP reagent detects carbonyl groups in aldehydes and ketones, forming a crystalline orange precipitate. The Tollen's test detects aldehydes, which produce a silver mirror. Esterification involves carboxylic acids and alcohols, producing esters. A carboxylic acid effervesces with NaHCO₃.
Answer for screen readers
Phenol undergoes the phthalein fusion test to form phenolphthalein. The reagents used are phenol, phthalic anhydride, and concentrated H₂SO₄. It results in a pale pink color. The 2,4-DNP reagent detects carbonyl groups in aldehydes and ketones, forming a crystalline orange precipitate. The Tollen's test detects aldehydes, which produce a silver mirror. Esterification involves carboxylic acids and alcohols, producing esters. A carboxylic acid effervesces with NaHCO₃.
More Information
The phthalein fusion test is specific for phenols and results in the formation of phenolphthalein, a common pH indicator. The 2,4-DNP test is a classic test for detecting aldehydes and ketones.
Tips
Using the incorrect reagents can yield false results in these tests. Ensure the proper sequence and quantities are used.
Sources
- Some Viva Questions | PDF | Aldehyde | Ammonium - Scribd - scribd.com
- Test for Phenolic Group - Testbook.com - testbook.com
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