Chemistry: The Central Science (13th Edition)

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

Chapter 22 - Chemistry of the Nonmetals - Exercises - Page 994: 22.72c


$NaBH_{4}$, Oxidation state of Boron is +3

Work Step by Step

Net oxidation state of the compound is 0, hence: Na: +1 x 1 = +1, H: -1 x 4 = -4 (when Hydrogen is in the form of Hydride, it has oxidation state of -1), hence B should have oxidation state of +3.
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