Multiple Choice
What is the hybridization of the carbon atoms in (1,2-dichloroethene)?
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1. A Review of General Chemistry
Hybridization
Multiple Choice
Which of the following atoms in histrionicotoxin 283a are -hybridized?
A
All carbon atoms in the molecule
B
Only the nitrogen atoms in the molecule
C
All carbon atoms in the aromatic ring and the imine nitrogen
D
Only the oxygen atoms
Verified step by step guidance1
Step 1: Understand what sp\(\textsuperscript{2}\) hybridization means. An atom is sp\(\textsuperscript{2}\) hybridized if it forms three sigma bonds and has one unhybridized p orbital, typically seen in atoms involved in double bonds or aromatic systems.
Step 2: Identify the atoms in the molecule that are part of an aromatic ring or double bonds. In aromatic rings, all carbon atoms are sp\(\textsuperscript{2}\) hybridized because they participate in a conjugated pi system with alternating double bonds.
Step 3: Look for nitrogen atoms that are part of double bonds, such as imine nitrogens (C=N). These nitrogens are also sp\(\textsuperscript{2}\) hybridized because they form a double bond and have a lone pair in an unhybridized p orbital.
Step 4: Recognize that oxygen atoms in typical functional groups like alcohols or ethers are usually sp\(\textsuperscript{3}\) hybridized, while oxygen in carbonyl groups (C=O) is sp\(\textsuperscript{2}\) hybridized. Determine the hybridization of oxygen atoms based on their bonding environment.
Step 5: Conclude that the atoms which are sp\(\textsuperscript{2}\) hybridized in histrionicotoxin 283a are all carbon atoms in the aromatic ring and the imine nitrogen, as these fit the criteria of sp\(\textsuperscript{2}\) hybridization due to their bonding and electronic structure.
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