Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Scientific Assistant' And exam conducted in the year 2023. And Question paper code was '079/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
medium.
B:-EDTA form complexes with all metal ions.
C:-Alkali medium is required for complex ion as EDTA will ionizes more in acidic
medium.
D:-Ethylene diamine tetra acetic acid (EDTA) and its disodium salts are
versatile complexometric agents.
Correct Answer:- Option-C
Question17:-In centrifugation, which of the following force is not used?
A:-Electrostatic force
B:-Gravitational force
C:-Centripetal force
D:-Centrifugal force
Correct Answer:- Option-A
Question18:-Which of the following will improve the efficiency of separating process
in liquid chromatography?
A:-Increase in sample size and increase in column diameter
B:-Reduction in sample size and increase in column diameter
C:-Increase in sample size and decrease in column diameter
D:-Decrease in sample size and decrease in column diameter
Correct Answer:- Option-D
Question19:-Which of the following is not a column type liquid chromatography?
A:-Gel permeation
B:-Paper
C:-Liquid solid
D:-lon exchange
Correct Answer:- Option-B
Question20:-Which of the following is not a type of detector used in gas
chromatography?
A:-Argon ionization detector
B:-Thermal conductivity detector
C:-Electron capture detector
D:-UV visible spectrometric detector
Correct Answer:- Option-D
Question21:-Which of the following error is caused by poor calibration of the
instrument?
A:-Random error
B:-Gross error