Multiple Choice
Which of the following best describes the Lewis dot structure for the neutral compound CCl4?
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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 two possible Lewis structures for a neutral compound with the formula C_4H_{10}?
A
Both structures have a linear arrangement of all four carbon atoms.
B
They represent two structural isomers: n-butane and isobutane.
C
One structure is cyclic and the other is linear.
D
They differ only in the placement of hydrogen atoms around the same carbon skeleton.
Verified step by step guidance1
Step 1: Understand the molecular formula C_4H_{10} represents an alkane with four carbon atoms and ten hydrogen atoms, which corresponds to butane and its isomers.
Step 2: Recall that alkanes with the formula C_nH_{2n+2} can have different structural isomers, meaning the connectivity of carbon atoms can vary, leading to different compounds with the same molecular formula.
Step 3: Recognize that for C_4H_{10}, there are two main structural isomers: n-butane, which has a straight chain of four carbon atoms, and isobutane (or methylpropane), which has a branched chain.
Step 4: Note that both isomers are acyclic (non-cyclic) and differ in the arrangement of carbon atoms, not just the placement of hydrogen atoms around the same carbon skeleton.
Step 5: Conclude that the correct description is that the two Lewis structures represent two structural isomers: n-butane and isobutane, differing in the carbon skeleton arrangement.
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