객관식
Given the following set of structural formulas, how many different constitutional isomers are represented?
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1. A Review of General Chemistry
Constitutional Isomers
객관식
Which of the following pairs are constitutional isomers of ?
A
1,1,2-trichloroethane and 1,2-dichloroethene
B
1,1,2-trichloroethane and 1,2,2-trichloroethane
C
1,1,1-trichloroethane and 1,1,2-trichloroethane
D
1,1,1-trichloroethane and 1,1,1-trichloroethene
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검증된 단계별 안내1
Step 1: Understand the definition of constitutional isomers. Constitutional isomers have the same molecular formula but differ in the connectivity of their atoms.
Step 2: Identify the molecular formula for each compound given. For example, 1,1,2-trichloroethane has the formula C\_2H\_3Cl\_3, and similarly determine the formulas for the other compounds.
Step 3: Compare the molecular formulas of each pair to check if they are identical. If the formulas differ, they cannot be constitutional isomers.
Step 4: For pairs with the same molecular formula, analyze the connectivity of atoms to confirm if they differ in structure (i.e., different positions of chlorine atoms on the ethane backbone).
Step 5: Conclude which pairs are constitutional isomers based on having the same molecular formula but different connectivity, such as 1,1,1-trichloroethane and 1,1,2-trichloroethane.
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