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Which behavior appears when supercritical carbon dioxide achieves miscibility?

A)Interfacial tension approaches zero
B)Density gradients become more extreme
C)Surface wetting increases sharply
D)Microbubbles intensely scatter visible light

💡 Explanation

Interfacial tension vanishes, because dispersion forces lead to the **disappearance of the interface** between the supercritical fluid and the soluble substance. Therefore achieving the miscibility reduces differences, rather than sharp gradients; because there is no differentiation in matter.

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