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WorksheetsDSP Quiz 2nd
Total questions: 10
Worksheet time: 5mins
Which of the following is not a commonly used solvent?
Acetone
Hexane
Iso-butyl keton
Acetaldehyde
The cost of solvent extraction is how many times more than distillation?
20
30
50
60
How can the partition coefficient be increased?
By increasing the feed
By decreasing the feed
By changing pH
By increasing chemical potential
Because partition coefficients of some solvents are unfavorably low _______ has received much attention.
Extractive reaction
Reactive extraction
Distillation
Fractional distillation
Which is the simple and the oldest technique for solvent extraction?
Spray column
Packed column
Plate column
Decanter
What type of agitator is rotating disk agitator?
Rotating agitator
By moving plates
By hands
Gravity separation
A mobile phase cannot be a :
Gas
Solid and Gas
Liquid and Gas
Solid
What is the use of ether layer?
To separate organic impurities
To separate inorganic impurities
To separate fibres
To separate solvent
The dispersed phase is also called as:
Non-continuous phase
Continuous phase
Dis-continuous phase
Gas phase
What is the major problem in settlers?
Colour of the two phases may be same
The two phases may not be visible
Emulsification in the mixing wheel
The size of dispersed particles can be large
