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Which consequence results when excessive mechanical stress fractures solid NaCl?

A)Brittle cleavage along crystal planes
B)Free radical formation increases sharply
C)Delocalized electron bands suddenly form
D)Dislocations entangle, causing plastic deformation

💡 Explanation

Mechanical stress causes brittle cleavage, due to electrostatic interactions within the ionic lattice. Applied force overcomes electrostatic attraction during Fracture Mechanics because planes shift relative to alternating ion charges; Therefore, brittle cleavage happens, rather than ductile yielding which requires mobile dislocations.

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