Compared to saturated oils, unsaturated oils have:
Show Hint
- lower melting point and higher reactivity to oxygen
- higher melting point and higher reactivity to oxygen
- lower melting point and lower reactivity to oxygen
- higher melting point and lower reactivity to oxygen
The Correct Option is A
Solution and Explanation
Step 1: Differentiating unsaturated and saturated oils.
Unsaturated oils, characterized by one or more double bonds in their fatty acid chains, exhibit lower melting points than saturated oils, which possess only single bonds. The double bonds in unsaturated oils also increase their susceptibility to oxidation due to higher reactivity with oxygen.
Step 2: Analysis of choices.
- (A) Unsaturated oils have a lower melting point and increased reactivity to oxygen, attributable to the presence of double bonds. - (B) This is incorrect as unsaturated oils do not possess a higher melting point. - (C) Unsaturated oils exhibit higher reactivity to oxygen but not a lower melting point. - (D) This is incorrect as unsaturated oils do not possess a higher melting point.
Final Answer: \[\boxed{\text{A) lower melting point and higher reactivity to oxygen}}\]
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