Kerala PSC Previous Years Question Paper & Answer
Page:14
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.
Question67:-Identify the correct number of peaks for ortho, meta and para
dichlorobenzene in scwmur
A:-4,3,1
B:-3, 4, 2
C:-3,3,1
D:-3, 4,1
Correct Answer:- Option-B
Question68:-which of the following statements regarding Arsenic is false?
A:-Pentavalent Arsenic is more toxic than trivalent Arsenic
B:-After absorption Arsenic binds to the sulfydryl groups of tissue proteins.
C:-Dermal pigmentation is consistently seen in chronic arsenic poisoning
D:-Antidote is chelation therapy with British Anti Lewisite
Correct Answer:- Option-A
Question69:-Pencillin in a mixture was determined by adding 0.2 mg of uc having a
specific activity of 686x107 com/mg. After equilibration 0.1 mg of pure penicillin was
obtained. The material had an activity of 343 cpm. Calculate the milligrams of
penicillin in the sample.
A:-0.1 mg
B:-0.3 mg
C:-0.2 mg
D:-0.43 mg
Correct Answer:- Option-C
Question70:-In DEPT Subspectra, DEPT-90, how many peaks are obtained for
isopentylacetate
A:-2
B:-5
1
D:-3
Correct Answer:- Option-C
Question71:-Estimation of chromium in samples uses which of the reagent and
method
A:-Dimethylglyoxime in Atomic Absorption Spectroscopy
B:-Diphenyl carbazide in Atomic Absorption Spectroscopy
C:-Dimethylglyoxime in UV-V is Spectroscopy
D:-Diphenyl carbazide in UV-V is Spectroscopy
Correct Answer:- Option-D
Question72:-(1) | Assertion : Neutron probes help in better management of land in
agriculture.