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Which configuration increases stiffness due to bond strain when applying rotational force to complex molecular machinery?

A)Decreased chain entanglement favors flexibility
B)Increased bond torsion hinders rotation
C)Conjugated pi-systems enable free rotation
D)Flexible side chains enhance articulation

💡 Explanation

Increased bond torsion hinders rotation because the applied force resists bond angle changes, initiating angle strain, therefore rotational resistance increases rather than having side chains allowing free articulation.

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