Questions: What is the correct condensed structural formula for this skeletal structure?
CH3(CH2)8CH3
CH3(CH2)5CH3
CH3(CH2)6CH3
CH3(CH2)7CH3
Transcript text: 〈EXAM II-PART I
Item 11
Part A
What is the correct condensed structural formula for this skeletal structure?
$\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{8} \mathrm{CH}_{3}$
$\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{5} \mathrm{CH}_{3}$
$\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{6} \mathrm{CH}_{3}$
$\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{7} \mathrm{CH}_{3}$
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Solution
Solution Steps
Step 1: Identify the Skeletal Structure
The given skeletal structure is a zigzag line with five vertices, indicating a five-carbon chain.
Step 2: Determine the Number of Carbons
Each vertex in the skeletal structure represents a carbon atom. Therefore, the structure has five carbon atoms in a straight chain.
Step 3: Write the Condensed Structural Formula
The condensed structural formula for a five-carbon straight chain alkane is \( \text{CH}_3(\text{CH}_2)_3\text{CH}_3 \).
Final Answer
The correct condensed structural formula for the given skeletal structure is \( \text{CH}_3(\text{CH}_2)_3\text{CH}_3 \).