When using limonene extracted form orange peels, what should the chemical observation be when 3-4 drops...

When using limonene extracted form orange peels, what should the chemical observation be when 3-4 drops of limonene is added to KMnO₄? What does it mean to test for unsaturation through this method?

Expert Solution

KMnO4 reacts with carbon-carbon double bonds (C=C double bonds). Limonene has formal, complete C=C double bonds. Limonene will react with KMnO4. They react by "adding across the double bond", and forming multiple C-O bonds on either end. The final result is to cleave the molecule across the C=C double bond. Usually, the products of that reaction are termed "carboxylic acids".

Here KMNO4 is reduced to MnO42- which is dark green in color.
So, physical observation will be appearance of dark green color.

It means that Limonene is unsaturated compound

queen_honey_blossom answered 2 years ago

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When using limonene extracted form orange peels, what should the chemical observation be when 3-4 drops...

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