The basic difference between vegetable oils and fats is in their ___________________?

Related Mcqs:

1. Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as ____________________ oil?

   A. Drying
   B. Semi-drying
   C. Non-drying
   D. None of these

2. Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its________________?

   A. Poor oxidation stability and high gum forming tendency
   B. Greater tendency of decomposition at elevated temperature
   C. Hydrolysis tendency in presence of water
   D. All A, B. and C

3. The basic constituent of vegetable oils is ___________________?

   A. Triglyceride
   B. Fatty acids
   C. Fatty alcohol
   D. Mono esters

4. Fats as compared to oils have ___________________?

   A. More unsaturated glycerides of fatty acids
   B. Less unsaturated glycerides of fatty acids
   C. Much higher reactivity to oxygen
   D. Lower melting point

5. Oils and fats are converted to soap in a process called _________________?

   A. Hydrogenation
   B. Esterification
   C. Saponification
   D. None of these

6. Oils are partially hydrogenated (not fully) to manufacture Vanaspati , because fully saturated solidified oils ?

   A. Cause cholesterol build up and blood clotting
   B. Are prone to rancid oxidation
   C. Always contain some amount of nickel (as their complete removal is very difficult)
   D. Have affinity to retain harmful sulphur compounds

7. Unsaturated oils compared to saturated oils have___________________?

   A. Lower melting point & higher reactivity to oxygen
   B. Higher melting point & higher reactivity to oxygen
   C. Lower melting point & lower reactivity to oxygen
   D. Higher melting point & lower reactivity to oxygen

8. Commercial production of Vanaspati is done by _______________ of edible vegetable oils ?

   A. Hydrogenation
   B. Oxidation
   C. Hydrolysis
   D. Hydrocracking

9. Hydrogenation of vegetable oils is a/an _______________ reaction ?

   A. Endothermic
   B. Autocatalytic
   C. Exothermic
   D. Homogenous

10. Flash point of most vegetable oils is about _______________ °C ?

    A. 50
    B. 100
    C. 200
    D. 300