A. Has low free fatty acid content
B. Is odourless
C. Both A. & B.
D. Neither A. nor B.
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 - Solvent used for extraction of oil is_____________________?
A. Hexane
B. Methyl ethyl ketone
C. Furfural
D. None of these - Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction__________________?
A. Decreases with decrease of thickness of the flakes
B. Increases with the increasing flake size keeping the flake thickness constant
C. Increases considerably with the rise of temperature
D. Decreases as the moisture content of flakes increases - Solvent extracted oil________________?
A. Has low free fatty acid content
B. Is odourless
C. Has more of unsaturates
D. None of these - Rancidity of the fatty oil can be reduced by its__________________?
A. Decoloration
B. Hydrogenation
C. Oxidation
D. Purification - Hydrogenation of oil takes place in a/an ____________________ reactor ?
A. Autothermal
B. Trickle bed
C. Plug flow
D. None of these - 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 - Tall oil obtained as a by-product from the black liquor recovery is________________?
A. A black, sticky & viscous liquid
B. Used in the manufacture of greases, emulsions & soaps
C. Composed mainly of rosin & fatty acids
D. All A , B. & C. - Higher viscosity index of a lubricating oil denotes_______________?
A. Less changes in fluidity of oil with temperature
B. Substantially high change in fluidity of oil with temperature
C. Its unsuitability under varying temperature conditions
D. None of these - Catalyst used in the hydrogenation of oil is_________________?
A. Nickel
B. Platinum
C. Iron
D. Alumina
