Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 6 - Electronic Structure of Atoms - Additional Exercises: 6.87a

Answer

Blue is absorbed most strongly when a plant is orange.

Work Step by Step

As said in the question, the observed color is the complementary color, which is the color across in the color wheel shown. So, if a plant is orange, the color that is absorbed most strongly is the one across orange in the color wheel, which is blue.
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