General Science Chemistry MCQs
Chemistry Objective (Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examination
41. What do we call the ratio of number of fission produced by a given generation of neutrons to the number of fission of the preceding generation?
42. Which of the following material is used to make control rods in a nuclear reactor?
43. Which of the following is emitted in alpha decay?
44. Which of the following reactions take place when iron nail in a copper sulphate solution becomes brownish in colour?
45. Which of these methods can be used to prevent rancidity?
46. What is the sum of powers of the concentration of the reactants called as?
47. What is the relationship between half-life period and initial concentration of the reacting species for a first order reaction?
48. Who gave the law of octaves for arrangement of elements?
49. From which element in the modern periodic table, the 3d transition series starts?
50. The Lanthanoids are part of which of the following block of elements in the periodic table?