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.
Related Mcqs:
- Saponification value/number of an oil or fat is a measure of its ___________________?
A. Fatty acid content
B. Degree of unsaturation of the fatty acids present in it
C. Average molecular weight
D. Insoluble fatty acid content - 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 - The difference between saponification value and acid value is____________________?
A. Called ester value
B. Always negative
C. Constant for all fatty oils
D. None of these - An oil is converted into fat by its___________________?
A. Hydrogenation
B. Hydrolysis
C. Hydrocracking
D. Hydration - Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in______________________?
A. Pyrolysis of oil
B. Sintering of porous catalyst
C. Hydrogen embrittlement
D. All A, B. and C. - Hydrogenation of oil/fat does not_________________?
A. Improve its resistance to rancid oxidation
B. Raise its melting point
C. Remove double bonds
D. None of these - 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 - Which oil is preferred for paint manufacture ?
A. Drying oil
B. Non-drying oil
C. Semi-drying oilD. Saturated oil
- High acid value of an oil or fat is an indication of _____________________?
A. Storage under improper conditions
B. Absence of unsaturation
C. Its smaller molecular weight
D. None of these - Oil produced by solvent extraction________________?
A. Has low free fatty acid content
B. Is odourless
C. Both A. & B.
D. Neither A. nor B.
