Question

Compared to saturated oils, unsaturated oils have:

• A. lower melting point and higher reactivity to oxygen
• B. higher melting point and higher reactivity to oxygen
• C. lower melting point and lower reactivity to oxygen
• D. higher melting point and lower reactivity to oxygen

Hint:

Unsaturated oils are more reactive to oxygen and have lower melting points than their saturated counterparts due to the presence of double bonds.

Answer 1

The Correct Option is A

Step 1: Understanding unsaturated vs saturated oils.
Unsaturated oils, which contain one or more double bonds in their fatty acid chains, have lower melting points compared to saturated oils (which only have single bonds). The presence of double bonds in unsaturated oils also makes them more reactive to oxygen, making them more prone to oxidation.

Step 2: Explanation of the options.
- (A) Unsaturated oils have a lower melting point and higher reactivity to oxygen due to the presence of double bonds. - (B) This is incorrect because unsaturated oils do not have a higher melting point. - (C) Unsaturated oils have a higher reactivity to oxygen but not a lower melting point. - (D) This is incorrect because unsaturated oils do not have a higher melting point.

Final Answer: \[ \boxed{\text{A) lower melting point and higher reactivity to oxygen}} \]