Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 23 - Problems: 23.22

Answer

see explanation below.

Work Step by Step

When one goes down the group, atomic size of transition elements increases, and nuclear charge is also increased, because of which ionization energy is also increased.So ionization energy of Mo is higher than Cr.Hence it is difficult to oxidize Mo than Cr.
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