Which of the following is used to pack columns in adsorption chromatography?
Anonymous Quiz
35%
Carbon
47%
Silica gel
12%
Potassium hydroxide
6%
Aluminium oxide
😱1
Which of the following stationary phase is not used in gel filtration chromatography?
Anonymous Quiz
37%
Sephadex
16%
Sephacryl
37%
Bio-Gel
11%
Resin beads
Chromatography is used to separate ____________
Anonymous Quiz
74%
Complex mixture compounds
21%
Simple mixtures
5%
Viscous mixtures
0%
Halogens
The Rf value is the ratio of distance travelled by solvent to the distance travelled by the solute.
Anonymous Quiz
75%
True
25%
False
Which of the following is not a factor to investigate in a site survey?
Anonymous Quiz
40%
BOD/COD
13%
Sterility
13%
Colour
33%
Radioactivity
Which of the following is a primary treatment?
Anonymous Quiz
47%
Sedimentation
26%
Activated sludge
16%
Sand filters
11%
Microstrainers
Which is the use of comminutors?
Anonymous Quiz
69%
To reduce the size of particles
13%
To remove the grit
13%
To remove large particles
6%
To remove small particles
Which of the following is used to grow anchorage-dependent cells?
Anonymous Quiz
13%
Airlift fermenter
38%
Tower fermenter
25%
Hollow fibre chamber
25%
Perfusion bioreactor
Which of the following bioreactor consists of a vessel replaced by a multilayered bag?
Anonymous Quiz
75%
Single Use bioreactors
25%
Perfusion bioreactors
0%
Airlift bioreactor
0%
Tower bioreactor
What is the function of carbon in stainless steel?
Anonymous Quiz
71%
Improves resistance to corrosion
14%
Improves ductility
0%
Reduces sensitization
14%
Improves halogen resistance
Which of the following class consists of microorganisms which are not causative agents?
Anonymous Quiz
33%
EFB Class 1
67%
EFB Class 2
0%
EFB Class 3
0%
EFB Class 4
Which of the following class of microorganisms causes less threat to a man?
Anonymous Quiz
43%
Low-risk microorganisms
14%
High-risk microorganisms
0%
Medium-risk microorganisms
43%
Environmental-risk microorganisms