Kerala PSC Previous Years Question Paper & Answer
Page:13
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Higher Secondary School Teacher (Junior) Chemistry' And exam conducted in the year 2023. And Question paper code was '033/2023/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.
B:-Diphenyl amine
C:-Diphenyl amine sulphonic acid
D:-All of the above
Correct Answer:- Option-D
Question60:-Which among the following is a phase transfer catalyst ?
A:-18 Crown 6
B:-Quarternary ammonium salt
C:-Phosphonium compounds
D:-All the above
Correct Answer:- Option-D
Question61:-Choose the stationary phase in lon Exchange chromatography from
the below given list
A:-Silica
B:-Alumina
C:-Polymer resin
D:-Starch
Correct Answer:- Option-C
Question62:-A solution containing 4.48 ppm 7170೦, ೧೫5 a transmittance of 0.309 ina
1cm cell at 520 nm. Calculate the molar absorptivity of xmno..
क
7
ധി അല്
0 :-5.62.10- 4] ८ 7107-1
Correct Answer:- Option-B
Question63:-Choose the correct statements from below mentioned ones
A:-A voltammogram is a plot of current as a function of applied voltage to a
micro electrode
B:-The Nernst diffusion layer is the thin layer of stagnant solution immediately
adjacent to the surface of an electrode in hydrodynamic voltammetry
C:-The half wave potential is the potential on a voltammetric wave at which
the current is one half of the limiting current
D:-All of the above
Correct Answer:- Option-D
Question64:-What is LEED ?
A:-Low energy electron diffraction
B:-Low energy emission decay
C:-Lowest energy electron dispersion