Question 14

Give a test that can be used to differentiate between saturated and unsaturated hydrocarbons.

Answer

Butter contains saturated fats. Therefore, it cannot be hydrogenated. On the other hand, oil has unsaturated fats. That is why it can be hydrogenated to saturated fats (solids).
Bromine water test - Cooking oil will decolourise the red colour of bromine water on shaking while butter will not.

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