A. Essential oil
B. Extract from medicinal herbs
C. Mixture of higher molecular weight alcohols (a by-product obtained during production of
alcohol from molasses)
D. None of these
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 - A mixture of chlorine & sodium bromide acts as a/an_________________?
A. Insecticides
B. Analgesic drug
C. Fire retardant
D. Hydrogenation catalyst - Bitterns is a/an_________________?
A. Unsaturated fat
B. Starting material for the production of iodine
C. By-product of chlor-alkali industry
D. None of these - Ordinary glass is not a/an_________________?
A. Amorphous isotropic material
B. Supercooled liquid
C. Material with sharp definite melting point
D. Electrical insulator - Hydrogenation of oil takes place in a/an ____________________ reactor ?
A. Autothermal
B. Trickle bed
C. Plug flow
D. None of these - Hydrogenation of oil does not ___________________?
A. Remove double bonds
B. Raise its melting point
C. Improve its resistance to oxidation
D. None of these - Solvent used for extraction of oil is_____________________?
A. Hexane
B. Methyl ethyl ketone
C. Furfural
D. None of these - 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 - 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
