Table 4: Protocols for carrying out qualitative test on carboxylic acid and phenol S/N Protocol 1. Observation Inference 1 and J were suspected to Sample I was dropped on a blue itmus paper. Sample J was also dropped on a different blue litmus paper be benzoic acid and phenol 2 3 ml of sample I was put into a dry test tube 1 was suspected to be and 2 ml of ethyl alcohol was added, followed by 2 ml of concentrated H;SO. The phenol mixture was heated in a water bath. 3 mi of sample J was put into a test tube and Brisk effervescence of a gas was evolved 1 ml of saturated NaHCO, was added. The 3. mixture was shaken thoroughly using a rubber cork. 4. No visible reaction occurred 1. Suspected to be was phenol 5. Sweet smelling substance was sensed suspected to be was benzoic acid 1. was confirmed to be Colour of mixture changed to green 6. phenol be was confirmed to benzoic acid 7. 3 ml of sample J was put into a test tube and 100 mg of resorcinol and 0.5 ml of H2SO. were added. The mixture was heated gently on a Bunsen burner. The mixture was then poured into a beaker containing dilute NaOH solution. 2. Propose a balanced chemical equation for item 3 3. Propose a balanced chemical equation for item 5
Table 4: Protocols for carrying out qualitative test on carboxylic acid and phenol S/N Protocol 1. Observation Inference 1 and J were suspected to Sample I was dropped on a blue itmus paper. Sample J was also dropped on a different blue litmus paper be benzoic acid and phenol 2 3 ml of sample I was put into a dry test tube 1 was suspected to be and 2 ml of ethyl alcohol was added, followed by 2 ml of concentrated H;SO. The phenol mixture was heated in a water bath. 3 mi of sample J was put into a test tube and Brisk effervescence of a gas was evolved 1 ml of saturated NaHCO, was added. The 3. mixture was shaken thoroughly using a rubber cork. 4. No visible reaction occurred 1. Suspected to be was phenol 5. Sweet smelling substance was sensed suspected to be was benzoic acid 1. was confirmed to be Colour of mixture changed to green 6. phenol be was confirmed to benzoic acid 7. 3 ml of sample J was put into a test tube and 100 mg of resorcinol and 0.5 ml of H2SO. were added. The mixture was heated gently on a Bunsen burner. The mixture was then poured into a beaker containing dilute NaOH solution. 2. Propose a balanced chemical equation for item 3 3. Propose a balanced chemical equation for item 5
Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter15: Carboxylic Acids And Esters
Section: Chapter Questions
Problem 15.39E
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