Answer
See explanation below.
Work Step by Step
In VF3, V have +3 oxidation state, and in F5, V has +5 oxidation state.The metal with less oxidation number have greater ionic nature, so VF3 have high boiling and melting points compared to VF5.
Chemistry: The Molecular Nature of Matter and Change 7th Edition
by Silberberg, Martin; Amateis, Patricia
Published by
McGraw-Hill Education
ISBN 10:
007351117X
ISBN 13:
978-0-07351-117-7
Chapter 23 - Problems - Page 1047: 23.21
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