SPSC : Lecturer Chemistry 24-04-2024 Full paper : SPSC Lecturer Chemistry 24-04-2024 paper
01. By the stroke of luck, the troops____, avoiding a crushing_____.
02. Synonym of acquaintance is?
03. Antonym of illusory is?
04. Without payment or free of cost mean?
05. We must try to understand his momentary aberration for Hyder has_____more strain and anxiety than any among us.
06. Select the word or phrase which is closest the opposite in meaning of the underlined/in the bracket word or phrase. The world media has tended to focus for more upon occasional (harmony) than on our spectacular achievements.
07. Seamstress is a woman who for a living?
08. The king was determined to______the law.
09. Select the correct voice change: Could you help me, please?
10. The teacher said “The sun rises in the east”?
11. In the IR (infrared) spectrum of the carboxylic acid group, the C=O bond shows the peak-shaped band at the range of?
12. Which of the following process explain the process of tautomerism
13. Which substances are synthesized when ultraviolet radiations reaction with (CFCs) Chlorofluorocarbons and they result in the breakdown of ozone layer?
14. “Anti allergic medicines are also called antihistamines”. The histamine is a chemical produced in body due to the?
16. In chromatographic analysis the principle used is?
17. 30 grams of acetic acid reacts with excess of ethyl alcohol to form 40 grams of ethyl acetate during esterification then percentage yield of ester is?
18. The salt which is formed by neutralization of weak acid and weak base is?
19. Only one pair of the liquid in the following set of solutions does not obey the Raoul’s Law. Identify it?
20. Automative antifreeze is a 60% weight/weight aqueous solution of ethylene glycol (C2H6O2) then its molality is?
21. The given reaction is the example of Free Radical Substitution (CH4 + Cl2 → CH3Cl + HCL). The order of this reaction is?
22. The cholesteryl - benzoate is?
23. ‘He’ gas effuse from a hole of 10 dm^3 vessel in “5” seconds. The time for effusion of O2 from the same hole of 10 dm^3 will be?
24. Which of the following molecule is polar and its dipole moment is 5.33 x 10^-30 Cm?
25. The co-ordination number and oxidation state of Cobalt in the given complex Na4[Co(C2O4)3] are respectively?
26. The metal ions of transition metals are paramagnetic. The magnetic moment towards magnetic field is greatest of:
27. The F-S-F bond angles in SF6 are?
28. In a process at constant volume ΔE =_____?
29. Which one of the following statements about the mass spectrum of CH3Br is correct?
30. Magnetic susceptibility (χ) measures on?
31. Natural rubber consists of polymers of the organic compound?
32. What is indicated when a chemical cell’s voltage has dropped to zero?
33. In crystal field theory (CFT), the energy gap between t2g and eg sets is denoted by?
34. For second order reaction, the initial concentration of reactant A is 0.24 M. If the rate constant is 8.1 x 10^-2 M^-1 s^-1, what is the concentration of A after 29 seconds?
35. Polymers which soften on heating and harden when cooled are?
36. Compound Z absorbs light of wavelength 320 nm. A 1.0 x 10^-3 mol dm^-3 solution of a compound Z gives an absorbance reading of 0.15 when placed in a solution cell path 1 cm. What is the value of the molar extinction (absorption) coefficient of Z?
37. Which of the following statements is not true about precision of data?
38. Based on the equations below, which metal is the most active? Pb(NO3)2 (aq) + Ni (s) → Ni(NO2)2 (aq) + Pb (s), Pb(NO3)2 (aq) + Ag (s) → No reaction, Cu(NO3)2 (aq) + Ag (s) → No reaction?
39. Which combination will produce a precipitate?
40. In_____, diffusion current is measured as a function of scanning potential difference.
41. The complexometric titration of the chemical specie cannot be done by using EDTA as titrant?
42. Elements having zero nuclear spin cannot be directly determined at?
43. The number of electrons involved in oxidation of glucose to gluconic acid are?
44. Which of the following is not a transition metal complex?
45. Pure water could be obtained from seawater by?
46. Which set of hybrid orbitals of carbon is used by each oxygen in forming H2CO3?
47. The catalyst in Friedel-Crafts alkylation is?
48. Oxidation of secondary alcohols produces?
49. ______are carboxylic acid with long hydrocarbon chain.
50. 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?
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