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 'Field Officer (Main Examination)' And exam conducted in the year 2023. And Question paper code was '161/2023'. 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.
40. In the conversion of phenol to o-hydroxybenzaldehyde using chloroform and alkali, the
principal reactive intermediate formed is :
(^) Carbon free radical ൯) Dichlorocarbene
(0) Phenoxide carbocation ൯൬) CCls carbanion
41. The IUPAC name of the compound with the following structure is :
1130 `
CH,
(A) 3-methyl-3-buten-1-yne ൯) 2-methyl-4-buten-1-yne
(0 2-methyl-1-buten-3-yne (0) 3-methyl-1-butyne-3-ene
42. The octane number of a fuel is determined by comparing the fuel to a mixture of :
(A) Iso-octane and n-heptane ൯) Iso-octane and n-octane
(0 n-octane and the fuel (D) Iso-octane and the fuel
43. What is the product of the ring-opening reaction of an epoxide on acid catalysed hydrolysis?
(൧) An aldehyde and a ketone (B) Aketone
(0) Aglycol (D) Acarboxylic acid
44. Inthe van der Waals equation of real gases, the parameter “b” represents :
(A) Volume of the molecules
(B) Attraction of the molecules
(C) Average distance between the molecules
(D) Average velocity of the molecules
45. A solution of a dye is exposed to light of a particular wavelength. The absorbance of the
solution is measured to be 1.0. What is the percentage of the incident light that is absorbed
by the solution?
(A) 10% (B) 50%
(0) 90% (D) 100%
A 9 161/2023-M
[P.T.0.]