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 - Kerala State Co-operative Marketing Federation Ltd ' And exam conducted in the year 2022. And Question paper code was '043/2022'. 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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The pH of water at 250 is 7, when it is heated to 100°C, the pH of water :
(A) Increases (B) Decreases
(C) Remain same () Decreases up to 50°C and then increases
Which of the following copper alloys is used for the manufacture of springs and suspension of
springs and suspension filaments in electrical instruments?
(^) Bronze (B) Aluminum bronze
(C) German silver (D) Phosphor bronze
Which of the following is/are the hazardous pollutant(s) present in automobiles exhaust
gases?
1. N,
2. CO
3. CH,
4. Oxides of nitrogen
(ಯ 2and3 ൯) land2
(0) 2and4 (D) land3
Which of the following is correctly matched?
(A) Aluminum - Haematite
(B) Lead — Galena
(C) Iron — Bauxite
(D) Magnesium — Malachite
1൩ cold water, aquatic animals survive even when water to the top layer of the lake freezes
into ice because :
(^) They can breathe in ice
(B) They have enough of accumulated oxygen inside them
(C) Their body structure is such that they can survive without oxygen
(D) Water has structure density of 4°C so underneath the top layer of there is layer of
water
Ferrocene cannot undergo which of the following reaction?
(^) Friedal craft acylation (B) Diels-Alder reaction
(C) Oxidation by Agt ions (9) Electrophilic substitution
According to wade’s Rule, [C,B,,H,,] adopts which type of structure?
(^) 01050 structure ൯) . nido structure
(0 archano structure ൯൩) hypo structure
5 043/2022
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