A. Decoloration
B. Hydrogenation
C. Oxidation
D. Purification
Related Mcqs:
- 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 - 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 - Fatty material used in soap making is _______________________?
A. Fatty acid
B. Fatty alcohols
C. Tallow
D. Detergents - Which of the following is an unsaturated fatty acid ?
A. Lauric acid
B. Palmitic acid
C. Stearic acid
D. Oleic acid - Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used_______________________?
A. As a lubricant
B. As a rust preventive
C. In hard water for cleaning of cloth
D. As a foam depressant in distillation column - Metallic soap is ________________ salt of fatty acids ?
A. Sodium
B. Potassium
C. Both sodium & potassium
D. Aluminium or calcium - ________________ acid is an unsaturated fatty acid ?
A. Palmitic
B. Oleic
C. Stearic
D. Oxalic - Sodium salt of higher molecular weight fatty acid is termed as the ______________________ soap?
A. Hard
B. Soft
C. Metallic
D. Lubricating - Pick out the wrong statement. Iodine value of an oil or fat is________________?
A. The number of grams of iodine taken up by 100 gm of oil or fat
B. A measure of its unsaturation
C. Helpful in findings its adulteration & its suitability for making soap
D. Independent of the type of oil, whether it is drying or non-drying - Saponification number of an oil or fat____________________?
A. Gives an idea about its molecular weight
B. Is inversely proportional to its molecular weight
C. Detects its adulteration
D. All A , B. & C.
