Questions
CHM1052 - MUM S2 2025 CHM1052 2022 practice exam 1
Single choice
When considering molecular conformations, which of the following statements are true?
Options
A.Different conformations are generally reached by rotation about a C-C single bond, a low energy process.
B.At room temperature conformations of ethane do not interchange.
C.Different conformations are generally reached by rotation about a C-C single bond, a high energy process.
D.Different conformations are generally reached by breaking and reforming C-C bonds.
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Step-by-Step Analysis
Begin by examining what determines conformational changes in molecules.
Option 1: 'Different conformations are generally reached by rotation about a C-C single bond, a low energy process.' This is correct because rotation around a C-C single bond typically has a small energy barrier (torsional barrier), allowing interconversion between conf......Login to view full explanationLog in for full answers
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