8. a) Four solutions were made up; one eontaining glucose, onecontaining starch, one containing amylase (a starch digestingenzyme) and one containing sucrose. Unfortunately, theywere not labelled, except as solutions A, B, C and D. Thefollowing tests were carried out to identify the solutions.All solutions were tested with Biuret reagentSolution C turns purpleSolutions A, B and D remain blueSolutions A, B and D tested with Benedict's solutionSolutions A and B remain blueloSolution D turns redSolutions A and B incubated withSolution C and then retested withBenedict's solutionSolution B turns redSolution A remains blueIdentify, with reasons, the four solutions.

4 Different solutions A, B, C and D: 1. Glucose 2. Starch 3. Amylase (an enzyme) 4. Sucrose Biuret…

8. a) Four solutions were made up; one containing glucose, one containing starch, one containing amylase (a starch digesting enzyme) and one containing sucrose. Unfortunately, they were not labelled, except as solutions A, B, C and D. The following tests were carried out to identify the solutions. All solutions were tested with Biuret reagent cart offoege delt eqansi Solution C turns purple Solutions A, B and D remain blue Solutions A, B and D tested with Benedict's solution Solutions A and B remain blue Solution D turns red Solutions A and B incubated with Solution C and then retested with Benedict's solution Solution B turns red Solution A remains blue Identify, with reasons, the four solutions.

8. a) Four solutions were made up; one containing glucose, one containing starch, one containing amylase (a starch digesting enzyme) and one containing sucrose. Unfortunately, they were not labelled, except as solutions A, B, C and D. The following tests were carried out to identify the solutions. All solutions were tested with Biuret reagent cart offoege delt eqansi Solution C turns purple Solutions A, B and D remain blue Solutions A, B and D tested with Benedict's solution Solutions A and B remain blue Solution D turns red Solutions A and B incubated with Solution C and then retested with Benedict's solution Solution B turns red Solution A remains blue Identify, with reasons, the four solutions.

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter5: Alkenes: Bonding, Nomenclature, And Properties

Section: Chapter Questions

Problem 5.31P

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Question

8. a) Four solutions were made up; one eontaining glucose, one
containing starch, one containing amylase (a starch digesting
enzyme) and one containing sucrose. Unfortunately, they
were not labelled, except as solutions A, B, C and D. The
following tests were carried out to identify the solutions.
All solutions were tested with Biuret reagent
Solution C turns purple
Solutions A, B and D remain blue
Solutions A, B and D tested with Benedict's solution
Solutions A and B remain bluelo
Solution D turns red
Solutions A and B incubated with
Solution C and then retested with
Benedict's solution
Solution B turns red
Solution A remains blue
Identify, with reasons, the four solutions.

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