A. Hot water
B. Hexane
C. Dilute H2SO4
D. Lime water
Related Mcqs:
- Leaching of coffee from coffee beans is done by___________________?
A. Hot water
B. Hexane
C. Lime water
D. Dilute H2SO4 (hot) - The ‘shanks system’ of leaching (i.e., counter-current multiple contact leaching) is used for____________________?
A. Recovery of tannis from the tree barks and woods
B. Leaching sodium nitrate from Chilean nitrate bearing rock
C. Both A. and B.
D. Neither A. nor B. - Leaching of uranium ore and gold ore is done in_____________________?
A. Centrifugal extractor
B. Pachuca tanks
C. Bollman extractor
D. None of these - Leaching of uranium ore and gold ore is done in________________________?
A. Centrifugal extractor
B. Pachuca tanks
C. Bollman extractor
D. None of these - Large scale drying of sugar is done in a _______________ dryer?
A. Spouted bed
B. Tray
C. Rotary
D. Truck - Extraction of coffee from its seed is done by___________________?
A. Liquid-liquid extraction
B. Leaching
C. Extractive distillation
D. Steam distillation - Coffee is prepared from coffee beans by leaching with____________________?
A. Cold water
B. Hot water
C. Dilute hot caustic solution
D. Naphtha - Which of the following operations does not involve leaching ?
A. Dissolving gold from ores
B. Dissolving pharmaceutical products from bark or roots
C. Dissolving sugar from the cells of the beet
D. Removing nicotine from its water solution by kerosene - Pick out the wrong statement pertaining to leaching ?
A. Fine solids cannot be leached in a Pachuca tank
B. Door classifier can be used for leaching of coarse solids
C. Vegetable seeds can be leached in either of Bollman extractor, Rotocel or Kennedy extractor
D. Very high temperature is not needed for the leaching of sugar beet - Rate of leaching increases with increasing______________________?
A. Temperature
B. Viscosity of solvent
C. Pressure
D. Size of the solid
