A. Stripping
B. Leaching
C. Differential distillation
D. Absorption
Related Mcqs:
- The crystallisation of a solute from a solution may be done by________________?
A. Removal of pure solvent by evaporation
B. Change of temperature thereby causing super-saturation
C. Changing the nature of the system by the addition of a more soluble material
D. All A., B. & C. - Atoms of the same element, but of different masses are called__________________?
A. Isobars
B. Isotones
C. Isotopes
D. None of these - A reduction process is accompanied with increase in the_______________?
A. Number of electrons
B. Oxidation number
C. Both A. & B.
D. Neither A. nor B. - A bypass stream in a chemical process is useful, because it___________________?
A. Facilitates better control of the process
B. Improves the conversion
C. Increases the yield of products
D. None of these - Recycling in a chemical process facilitates___________________?
A. Increased yield
B. Enrichment of product
C. Heat conservation
D. All A., B. & C. - A chemical process is said to occur under unsteady state, if the_________________?
A. Inventory changes do not take place
B. Ratio of streams entering/leaving are independent of time
C. Flow rates & composition both are time dependent
D. None of these - In _______________ process, ions of salts react with water to produce acidity or alkalinity ?
A. Hydration
B. Hydrolysis
C. Electrolysis
D. Dialysis - In a chemical process, the recycle stream is purged for______________________?
A. Increasing the product yield
B. Enriching the product
C. Limiting the inerts
D. Heat conservation - Clausius Clapeyron equation applies to the _____________ process?
A. Sublimation
B. Melting
C. Vaporisation
D. All A., B. & C. - A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?
A. 3 kmole/hr
B. 4 kmole/hr
C. 5 kmole/hr
D. 6 kmole/hr