Multiple Choice
Which of the following best describes the Lewis dot structure of carbon dioxide (CO_2)?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Neutral Compounds
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Which of the following statements correctly describes the Lewis dot structure of methanol (CH3OH)?
A
The carbon atom forms a double bond with the oxygen atom and single bonds with three hydrogen atoms.
B
The oxygen atom has three lone pairs and forms a single bond with the carbon atom.
C
The carbon atom forms single bonds with four hydrogen atoms and no bonds with oxygen.
D
The oxygen atom has two lone pairs and forms single bonds with both a hydrogen atom and a carbon atom.
Verified step by step guidance1
Recall that the Lewis dot structure represents the valence electrons of atoms and how they are shared or paired in bonds.
Identify the valence electrons for each atom in methanol (CH3OH): Carbon has 4, Hydrogen has 1 each, and Oxygen has 6.
Determine the bonding pattern: Carbon typically forms 4 bonds, Oxygen typically forms 2 bonds and has lone pairs, and Hydrogen forms 1 bond.
Construct the structure by bonding the carbon atom to three hydrogen atoms and one oxygen atom, and then bond the oxygen atom to one hydrogen atom.
Assign lone pairs to oxygen so that it has two lone pairs, completing its octet, while carbon and hydrogen atoms have no lone pairs, ensuring all atoms satisfy their typical bonding patterns.
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