Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'CHEMIST IN FACTORIES AND BOILERS ENGLISH ' And exam conducted in the year 2020. And Question paper code was '009/2020'. 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.
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Heat of neutralization of strong acid and strong base is :
(മ -57.1 KJ/mol (8) + 13.7 KJ/mol
)0 -13.7 KJ/mol (D) +57.1 KJ/mol
Relationship between the molar specific heat at constant pressure (Cp) and the molar specific
heat at constant volume (Cv) is :
(A Cp+Cv=R © ௬௨௩
ര Cp-Cv=R त) Cp/Cv=1
Which of the following is true about the octane number of isooctane, n-butane and n-hexane?
(ಹ) isooctane > n-hexane> n-butane {B) isooctane > n-butane> n-hexane
{C) n-hexane> n-butane> isooctane (2) n-hexane > isooctane> n-butane
First stage of coal formation is :
{A) Lignite (3) Bituminous
(0) Peat (D) Anthracite
Which of the following is a secondary fuel?
{A) coalgas {B) naturalgas
(0) ற (D) petroleum
The reaction of isobutane and isobutene in presence of anhydrous HF at room temperature
yields :
(ಹ) isooctane {B) n-octane
{C) n-decane (D)} heptane
Sweetening of petroleum is the process of :
{A) desulphurisation (8) de-emulsification
{C) addition of antiknocking agents യ) fractional distillation
The main components of natural gas is
(ಹ) methane and butane {B) methane and ethane
{C) methane and isooctane (2) butane and isooctane
‘Which of the following cannot be purified by sublimation?
(ಹ. 106170 (3) arsenic oxide
(@ ammonium chloride {D) calcium chloride
009/2020 6 A
