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Which 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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