Same chapter3 marksDifficulty: Medium
What is meant by the promoter and the poison of a catalyst? Give one example of each.
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3 marksDifficulty: Medium
What is an emulsion? Name the two types with an example of each.
Original Khojo Papers practice question — not from a past board paper.
Answer
An emulsion is a colloid in which both the dispersed phase and the dispersion medium are liquids. In an oil-in-water emulsion oil is dispersed in water, as in milk. In a water-in-oil emulsion water is dispersed in oil, as in butter and cold cream.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
An emulsifying agent such as soap is needed to keep an emulsion stable.
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