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Q. 14.     Give a test that can be used to differentiate between saturated and unsaturated hydrocarbons.

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Butter is a saturated compound and oil is an unsaturated compound.

Test: When oil is added to a test tube containing alkaline potassium permanganate solution KMnO_4, the pink colour of the solution disappear.

Therefore, cooking oil causes decolourisation of the solution. This does not happen in case of butter.

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HARSH KANKARIA

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