Question

Give a test that can be used to differentiate chemically between butter and
cooking oil.​

Answer 1

Answer:

Bromine water test

Bromine water test can be used to chemically differentiate between a 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.

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Answer 2

Answer:

We can also distinguish chemically between a cooking oil and a butter by the bromine water test. Cooking oil decolourises bromine water showing that it is an unsaturated compound. Butter does not decolourises bromine water showing that it is a saturated compound.