Which fatty acid is described as having no double bonds?

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Multiple Choice

Which fatty acid is described as having no double bonds?

Explanation:
This question tests how fatty acids are classified by double bonds. If there are no double bonds, the fatty acid is saturated—that means every carbon is bound to as many hydrogens as possible, giving a straight chain that packs tightly and is usually solid at room temperature. Monounsaturated fats have one double bond, which introduces a bend in the chain; polyunsaturated fats have more than one double bond, with multiple bends. Trans fatty acids are still unsaturated because they contain double bonds, but the atoms around the double bond have a trans arrangement rather than cis, which affects their shape and properties.

This question tests how fatty acids are classified by double bonds. If there are no double bonds, the fatty acid is saturated—that means every carbon is bound to as many hydrogens as possible, giving a straight chain that packs tightly and is usually solid at room temperature.

Monounsaturated fats have one double bond, which introduces a bend in the chain; polyunsaturated fats have more than one double bond, with multiple bends. Trans fatty acids are still unsaturated because they contain double bonds, but the atoms around the double bond have a trans arrangement rather than cis, which affects their shape and properties.

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