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Which risk increases with high current density during electrodeposition of silver?

A)Agglomeration creates dendrite formation
B)Ionic flux exceeds surface mobility
C)Overpotential encourages metal passivation
D)Hydrogen evolution reduces reduction potential

💡 Explanation

High current density lowers surface ion concentration, causing diffusion-limited kinetics. The process of diffusion-limited aggregation then accelerates dendrite growth because silver ions preferentially deposit on protrusions rather than planar surfaces, therefore increasing agglomeration risk.

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