Multiple Choice
Which of the following pairs of compounds are constitutional isomers?
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1. A Review of General Chemistry
Constitutional Isomers
Multiple Choice
Which of the following statements correctly distinguishes constitutional isomers from other types of isomers?
A
Constitutional isomers have the same but differ in the connectivity of atoms.
B
Constitutional isomers have different but the same connectivity of atoms.
C
Constitutional isomers differ in the number of atoms present in the molecule.
D
Constitutional isomers have the same connectivity of atoms but differ in spatial arrangement.
Verified step by step guidance1
Understand the definition of constitutional isomers: Constitutional isomers, also known as structural isomers, have the same molecular formula but differ in the connectivity of their atoms.
Differentiate between molecular formula and connectivity: The molecular formula indicates the number and type of atoms in a molecule, while connectivity refers to how these atoms are bonded together.
Identify the incorrect statements: Constitutional isomers do not have different molecular formulas; they have the same molecular formula. They also do not differ in the number of atoms present, as this would imply a different molecular formula.
Clarify the difference from stereoisomers: Stereoisomers have the same molecular formula and connectivity but differ in the spatial arrangement of atoms. This is not the case for constitutional isomers.
Conclude with the correct statement: The correct distinguishing feature of constitutional isomers is that they have the same molecular formula but differ in the connectivity of atoms.
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