Kerala PSC Previous Years Question Paper & Answer
Page:11
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.
Question52:-Match the compound with the correct fragmentation peak
m/z = 108 (molecular ion), 107, 79, 77, 51
A:-Ethyl benzene
B:-Benzyl alcohol
C:-Xylene
D:-Toluene
Correct Answer:- Option-B
Question53:-The function of which enzyme is inhibited by cyanide poisoning
A:-Super Oxide dismutase
B:-Cytochrome oxidase
C:-Ascorbate oxidase
D:-Carbonic anhydrase
Correct Answer:- Option-B
Question54:-Which of the following is true about LD 50?
(1) It is the amount of a material, given all at once, which causes the death of 50%
(one
half) of a group of test animals.
(11) It is the amount of chemical administered (e.g., milligrams) per 100 grams (for
smaller
animals) or per kilogram (for bigger test subjects) of the body weight of the
test animal
which proves to be fatal.
A:-Only (1)
B:-Only (Il)
C:-None of these
D:-Both (1) and (II)
Correct Answer:- Option-D
Question55:-The tension probe used in thermo-mechanical analysis is made of
A:-Glass
B:-Polymer
C:-Fibre
D:-Graphite
Correct Answer:- Option-A
Question56:-How many peaks is expected for 1, 2 dichloropropane in :xvmr?
A:-3
B:-4
C:-5
D:-2
Correct Answer:- Option-B