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Questions
Give a test that can be used to differentiate chemically between butter and cooking oil.
Give a test that can be used to differentiate between saturated and unsaturated hydrocarbons.
Solution
A bromine water test can be used to chemically differentiate between butter (Saturated) and cooking oil (Unsaturated).
Take two test tubes, one with a small amount of butter in it and the other with some cooking oil. Add bromine water to both the test tubes.
Observation:
- Cooking oil decolourises bromine water indicating that it is an unsaturated compound.
- Butter does not decolourise bromine water indicating that it is a saturated compound.
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