Kerala PSC Previous Years Question Paper & Answer
Page:9
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LECTURER IN PHYSICAL SCIENCE COLLEGIATE EDUCATION' And exam conducted in the year 2018. And Question paper code was '028/2018/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.
५ *2p_(2)* orbitals `}#@ 20 ` , `( 20 ` .)25 القن
B:-only ` 2. (5), “2p_(x)", “2p_(y)" orbitals
C:-only *2_(s)" and *2p_(2)" orbitals
D:-only™ *2p_(z)* orbital
Correct Answer:- Option-C
Question67:-The point group symmetry of *CH_(2)° =C="CH (2} is
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©~0 (रः
0:- 0 (20
Correct Answer:- Option-D
Question68:-The molecule that has *S_(6)" symmetry element is
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[ட்
டு
மு
Correct Answer:-Question Cancelled
Question69:-An element with density 11.2 g/'em”~(3)" forms an fec lattice with edge length of *4xx10~(-8)" cm. Calculate
the atomic mass of the element.
A:-120.8
B:-240.4
C:-98
D:-107.9
Correct Answer:- Option-D
Question70:-The crystal with metal deficiency defect is
A:-NaCl
B:-ZnO
ல்
0:-41
Correct Answer:- Option-C
Question71:-Which one of the following is used as piezo electric material 7
A:-Silica gel
B:-Graphite
C:-Kieselghur
D:-Quartz
Correct Answer:- Option-D
Question72:-Standard electrode potentials of three metals X, Y, Z are -1.2V, +.5V and -3V respectively. The reducing power
of these metals will be
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B:-Y>X>Z
മ്മാ
D:X>Y>Z
Correct Answer:- Option-C
Question73:-The most populated rotational state for HCI (B = 8.5 “(1 } at 300 K is
A4
B:-3
6:1
0:-8
Correct Answer:- Option-B
Question74:-The value of “d_(111)" in a cubic crystal is 325.6 pm. The value of 84 (333) كا
A:-208 pm
B:-308 pm
C:-108.5 pm
D:-420 pm
Correct Answer:- Option-C
Question75:-The molecule active in rotational microwave, infrared absorption as well as rotational Raman spectra is
#:- 00 (2)
8:- 57 (67
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