Answer
B
Work Step by Step
In this case, both carbons are making 5 bonds, requiring, for the 9 bonds and 2 lone pairs, 22 electrons whilst $C_2H_6O$ provides 20 valence electrons (4 per carbon, 1 per hydrogen and 6 per oxygen).
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 8 Bonding and Molecular Structure - 8-2 Covalent Bonding and Lewis Structures - Review & Check for Section 8-2 - Page 296: 4
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