Answer
b. the disinfectant might oxidize molecules
Work Step by Step
The methylene blue in the solution is reduced by the spoiled milk. However, after the addition of the disinfectant, it is oxidized, changing its color to blue again.
Microbiology: An Introduction, 11th Edition
by Tortora, Gerard J.; Funke, Berdell R.; Case, Christine L.
Published by
Benjamin Cummings
ISBN 10:
0321733606
ISBN 13:
978-0-32173-360-3
Chapter 7 - The Control of Microbial Growth - Study Questions - Multiple Choice - Page 205: 6
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