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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'HSST-CHEMISTRY - JR - SR FOR SC / ST ONLY' And exam conducted in the year 2017. And Question paper code was '001/2017/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. 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.
C:-4
D:-3
Correct Answer:- Option-A
Question38:-A is the stereoisomer of the compound B, Therefore A and B differ in their :
A:-Composition
B:-Steric Hindrance
C:-Configuration
D:-Constitution
Correct Answer:- Option-C
Question39:-The hybridization of the central carbon in allenes is :
4:-` 050^ (2).
8:-50^(3)`
@- 50^(2)`
D:-sp
Correct Answer:- Option-D
Question40:-High quantum yields of photochemical reactions are due to :
A:-Lowering of activation energy
B:-Accompanying side reactions
C:-Formation of free radicals
D:-High frequency of collision
Correct Answer:- Option-B
Question41:-What is the eigen value of sin2*x* which is not an eigen function of the operator‘ d/dx* but of *d*2/dx*2* ?
D:-*-4°
Correct Answer:- Option-D
Question42:-In first order reaction *A_((g))° ` (9)` ` +© ((9)) , the initial pressure is 11200 Pa and half life period of
the reaction is 29.93 min. What is the total pressure at the end of 16 minutes ?
A:-14667 Pa
B:-15656 Pa
C:-16235 Pa
D:-14555 Pa
Correct Answer:- Option-A
Question43:-Predict the number of translational, rotational and vibrational degrees of freedom in neon :
A:-3,0,1
B:-3, 1,0
C:-3, 0,0
0:-3, 1, 1
Correct Answer:- Option-C
Question44:-How many diastereomers are shown by the molecules ‘CH_3CH=CHCH=CH-C_2H_5?*
ا
B:-4
C:-3
D:-2
Correct Answer:- Option-B
Question45:-The term ‘quantum mechanics' was first introduced by :
A:-Schrondinger
B:-Max Born
C:-Bohr
D:-Einstein
Correct Answer:- Option-B
Question46:-Which of the following radiation has the longest wavelength ?
A:-UV
B:-Micro wave
C:-Cosmic wave
D:-Radio wave
Correct Answer:- Option-D
Question47:-Transmittance in spectroscopy analysis is a function primarily of the :