4. It is thought that in the 12th century or earlier, Suminagashi was developed

Question

4. It is thought that in the 12th century or earlier, Suminagashi was developed as a now ancient Japanese technique of painting on water to create marbleized effects on paper. Suminagashi literally means "ink- floating". If you were to choose one of the following elements, which is the most polar and therefore most responsible for separating water from the paint? (Hint: we are talking about the differences between paint and water polarity and hydrophobicity) O Carbon Nitrogen Oxygen Sulfur Other (please specify)

Explanation / Answer

Polarity depends on the electron repulsive activity. Among the given elements, sulphur has the highest electron repulsion activity and therefore has the highest polarity. Therefore, in suminagashi technique sulphur is used to separate water from the paint.

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