Kerala PSC Previous Years Question Paper & Answer
Page:18
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Junior Research Officer (SR for ST)' And exam conducted in the year 2023. And Question paper code was '137/2023/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.
A:-Giving mechanical stirring to test solution
B:-KCI like supporting electrolyte is added
C:-Oxygen is removed from the test solution
D:-Addition of small amount of surface active agents
Correct Answer:- Option-D
Question75:-The potential developed by the liquid being forced to flow through a
plug or diaphragm is called
A:-Electrode potential
B:-Streaming potential
C:-Sedimentation potential
D:-Electrophoretic potential
Correct Answer:- Option-B
Question76:-The reduction potential of saturated calomel electrode at 25°C is
0.2415 V, it indicates
"اھب و 2 - -प ००८0०2८ :4
92012426 +- _201+ و لز2۔: تا
26+ 201+و25 :- واءرو 7-:0)
D:-2H9+2Cl +2" + Ha,Cly
Correct Answer:- Option-A
Question77:-For a reaction, the rate constant k at 27°C is 5.0 x 10-2. The activation
energy of the reaction is
^:-500000 (च
B:-s0 moi
(20
D:-2000 Imei
Correct Answer:- Option-A
Question78:-Consider a second order reaction, if 'a' is the initial concentration of
the reactants. Then, the half-life period of the reaction is directly proportional to
A:-a
B:-,3
6-8
D:-a2
Correct Answer:- Option-C
Question79:-For a given ionic strength |, rate of reaction is given by ഗി
Which of the following reaction show the above rate equation
و+-3تاوی- نم
B:-CH;COOH+C,H;OH