Rank the following fatty acids from highest melting point to lowest melting poin

Question

Rank the following fatty acids from highest melting point to lowest melting point: A saturated fatty acid with a greater molecular weight has a higher melting point than a saturated fatty acid with a lower molecular weight A saturated fatty acid with a greater molecular weight has a lower melting point than a saturated fatty acid with a lower molecular weight A saturated fatty acid has a higher meting t than an unsaturated fatty acid. A saturated fatty acid has a lower melting point than an unsaturated fatty add.

Explanation / Answer

CH3(CH2)16COOH> CH3(CH2)10COOH> CH3(CH2)5CH=CH(CH2)7COOH

> CH3(CH2)4CH=CH(CH2)4(CH2)2COOH

As the molecular weight increases, the melting point increases.

The unsaturated fatty acids have lower melting points than the saturated fatty acids.

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