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Oil-soluble dye is mixed with water-in-o...

Oil-soluble dye is mixed with water-in-oil emulsion, then

A

Dispersion medium is coloured

B

Dispersed phase is coloured

C

Both coloured

D

None is coloured

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the effect of mixing an oil-soluble dye with a water-in-oil emulsion, we can follow these steps: ### Step 1: Understand the Composition of the Emulsion - An emulsion consists of two immiscible liquids where one liquid is dispersed in the other. In this case, we have a water-in-oil emulsion. - In a water-in-oil emulsion, the dispersed phase is water, and the dispersion medium is oil. **Hint:** Remember that in a water-in-oil emulsion, oil is the continuous phase while water is the dispersed phase. ### Step 2: Identify the Role of the Oil-Soluble Dye - The oil-soluble dye is designed to dissolve in oil, which is the dispersion medium in this case. - When the dye is added to the emulsion, it will dissolve in the oil phase. **Hint:** Consider how solubility affects the distribution of color in the emulsion. ### Step 3: Determine the Effect on the Emulsion - Since the oil-soluble dye dissolves in the oil, it will color the dispersion medium (the oil). - The dispersed phase (water) will not be colored because the dye does not dissolve in water. **Hint:** Think about what happens to the color when a dye is added to a specific phase of an emulsion. ### Step 4: Analyze the Options Given - Option 1: Dispersion medium is colored - This is true because the oil (dispersion medium) will be colored by the dye. - Option 2: Dispersed phase is colored - This is false because the water (dispersed phase) will remain uncolored. - Option 3: Both colored - This is false as only the dispersion medium is colored. - Option 4: None is colored - This is false as the dispersion medium is colored. ### Conclusion The correct answer is that the dispersion medium is colored. **Final Answer:** The dispersion medium is colored (Option 1).
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