SPSC - Lecturer Chemistry 2023 Past Paper with Answers

Practice the SPSC - Lecturer Chemistry 2023 past paper with 100 solved MCQs, answers and topic coverage.

100 solved MCQs across 2 approved papers

Oxime is also known as _____?Answer: Acetaldehyde amine Jinnah Stadium is located in ________?Answer: Gujranwala Complete the following reaction Ca(OH)₂ + Cl₂ → _____ + _____?Answer: CaOCl₂, H₂O Which of the following elements have the highest values of ionization energy?Answer: Inert gases Aluminum bronze is an alloy which has composition of _____?Answer: 10% Al and 90% Cu Which of the following chemical is used in the processing of anti-polio vaccine?Answer: Formaldehyde How many sulphur atoms are present in a puckered ring?Answer: 8 Among the following, all are water borne diseases except?Answer: AIDS The alkali and alkaline earth metals cannot be used as electrodes in voltaic cells based on water as the solvent because of their rapid _____?Answer: Oxidation Which substance is known as Oil of Vitriol?Answer: Sulfuric acid Hemiacetal is formed when formaldehyde adds one molecule of ______?Answer: Ethyl alcohol Which type of metal salts are preferred for performing flame tests?Answer: Chlorides Which of the following statements is correct about Newland’s Law?Answer: He arranged all known elements in tabular form Ca(OH)₂ is commonly known as _____?Answer: Slaked lime When ethyl alcohol is produced by fermentation process, the gas which is escapes in the form of bubbles is ______?Answer: Carbon dioxide Which method is used for the purification of bauxite containing excess silica as an impurity?Answer: Serpeck’s method Fehling's test and Tollen's test are used for the identification of ______?Answer: Aldehydes 50 Kg of coal tar fractional distillation produces benzene amount ______?Answer: 2-3 Kg Polyethene is formed from polymerization of ______?Answer: Ethylene Which of the following compound is not considered as organic compound?Answer: Carbon dioxide Which one of the following forms weak electrolyte solution with water?Answer: CH₃COOH Hypochlorous acid (HClO) is unstable and readily liberates ______?Answer: Atomic Oxygen When Qc < Kc, which one of the following statements is true?Answer: The reaction will proceed in the forward direction The color of KMnO₄ entirely disappears by the action of reducing agent is _____?Answer: Acidic medium A type of blood disease which is caused by radiation such as X-rays and gamma rays is?Answer: Leukemia In dry cell the electrolyte is a moist paste of ______?Answer: NH₄Cl and ZnCl₂ Acid ferric chloride FeCl₃ solution reduces to ferrous chloride FeCl₂ solution by ______?Answer: Nascent Hydrogen Which compound is very slightly soluble in water?Answer: AgCl The Lowry and Bronsted theory describes that Urea is amphiprotic solvent. If it reacts with ammonia then it acts as?Answer: Acid to form The rate at which hydrogen is used in the reaction. N2(g) + 3H2(g) → 2NH3(g) is 1.72 mol H2.L^-1.h^-1. What is the rate (in mol N2.L^-1.h^-1) at which nitrogen is used?Answer: 0.57