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← ScienceWhich outcome occurs when high humidity causes surface water layer to form on ionic crystal?
A)Increased electrical conductivity across surface✓
B)Decreased crystal lattice vibrational modes
C)Enhanced ultraviolet light absorption
D)Formation of insoluble hydroxide compounds
💡 Explanation
When high humidity leads to surface water absorption on the ionic crystal, increased electrical conductivity results, because water acts as a medium for ion mobility, enabling surface conduction via charge migration. Therefore, current flow increases, rather than vibrational changes, UV absorption, or hydroxides, which necessitate different environmental compositions.
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