Question
i. What are natural fats? Comment on their melting points.
ii. Explain how unsaturation affects the melting point and crystalline nature of fats.
ii. Explain how unsaturation affects the melting point and crystalline nature of fats.
✓
Answer
i. Natural fats are mixtures of triglycerides. They do not have sharp melting points and melt over a range of temperatures.
ii. Effect of unsaturation:
Note: Naturals fats and their physical states
Note: Molecular shapes of fats (A schematic representation):
ii. Effect of unsaturation:
- The more unsaturated the fat (i.e., the presence of C=C bonds), lower is its melting point.
- Also, they will be less crystalline in nature.
Note: Naturals fats and their physical states
| Mainly saturated fats | Mainly monounsaturated fats | Mainly polyunsaturated fats |
| Coconut fat/oil, butterfat, lard, margarine, Vanaspati ghee | Olive oil, peanut oil, canola oil | Safflower oil, sunflower oil, soybean oil, com oil, fish oil |
| Solid | Liquid | Liquid |
Note: Molecular shapes of fats (A schematic representation):
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain displacement reaction in terms of redox reaction by giving example.
Explain the difference between permanent electronic effect and temporary electronic effect.
What are the different types of cleansing agents?
Write the general reactions for the catalytic hydrogenation of alkenes and alkynes.
Which electrons are involved in the formation of chemical bonds?
Draw the structure of the following : Orthophosphoric acid
How many significant figures are present in each of the following?
$i. \ 45.0 \ \ ii. \ 0.001 \ \ iii. \ 2.10 \times 10^{-8} \ \ iv. \ 340000 \ \ v. \ 0.0100 \ \ vi. \ 7890320 \ \ vii. \ 100.00 \ \ viii. \ 100$
→$i. \ 45.0 \ \ ii. \ 0.001 \ \ iii. \ 2.10 \times 10^{-8} \ \ iv. \ 340000 \ \ v. \ 0.0100 \ \ vi. \ 7890320 \ \ vii. \ 100.00 \ \ viii. \ 100$
What is decarboxylation?
Write reactions for the ozonolysis of the following alkenes:
i. Ethene
ii. Propene
i. Ethene
ii. Propene
Complete the following table that shows the shifts in the equilibrium position for the reaction:
$N_2O_{4(g)} + Heat ⇌ 2NO_{2(g)}$
→$N_2O_{4(g)} + Heat ⇌ 2NO_{2(g)}$