Multiple Choice
Which of the following statements correctly describes the Lewis dot structure of the neutral compound BH3?
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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 oxygen atom has two lone pairs and forms single bonds with both the carbon and hydrogen atoms.
B
The carbon atom forms four single bonds with hydrogen atoms and no bond with oxygen.
C
The oxygen atom has one lone pair and forms a triple bond with the carbon atom.
D
The carbon atom forms a double bond with the oxygen atom and three single bonds with hydrogen atoms.
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, and Oxygen has 6 valence electrons.
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 to complete its octet; oxygen should have two lone pairs, and all atoms should have full valence shells with single bonds where appropriate.
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