Bihar PCS 65th Pre Exam Paper 2019 (Answer Key)

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41. Who is regarded as the Father of Modern Chemistry?
(A) Rutherford
(B) Einstein
(C) Lavoisier
(D) C. V. Raman
(E) None of the above/More than one of the above

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42. The number of electrons and neutrons in an element is 18 and 20 respectively. Its mass number is
(A) 22
(B) 2
(C) 38
(D) 20
(E) None of the above/More than one of the above

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43. Which of the following is also known as laughing gas?
(A) Nitric oxide
(B) Nitrous oxide
(C) Nitrogen pentoxide
(D) Nitrogen
(E) None of the above/More than one of the above

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44. Which of the following is not a type of element?
(A) Metals
(B) Nonmetals
(C) Gases
(D) Metalloids
(E) None of the above/More than one of the above

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45. The pH value of water is
(A) 4
(B) 7
(C) 12
(D) 18
(E) None of the above/More than one of the above

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46. The main component of greenhouse gases is
(A) carbon dioxide
(B) methane
(C) nitrous oxide
(D) ozone
(E) None of the above/More than one of the above

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47. Oxygen is absent in
(A) kerosene
(B) glass
(C) soil
(D) cement
(E) None of the above/More than one of the above

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48. Natural rubber is a polymer of
(A) isoprene
(B) styrene
(C) vinyl acetate
(D) propene
(E) None of the above/More than one of the above

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49. What is the formula of glucose?
(A) C₆H₂O₁₁
(B) C₆H₁₀O₅
(C) C₆H₁₂O₆
(D) C₆H₆O₆
(E) None of the above/More than one of the above

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50. What is the bond order of Co group?
(A) 1
(B) 2.5
(C) 3.5
(D) 3
(E) None of the above/More than one of the above

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51. The book, The Origin of Species was written by
(A) Linnaeus
(B) Lamarck
(C) Mendel
(D) Darwin
(E) None of the above/More than one of the above

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52. The interaction between algae and fungi to form lichen is called
(A) parasitism
(B) mutualism
(C) commensalism
(D) conversion
(E) None of the above/More than one of the above

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53. The actual location or place where an organism lives is called
(A) habitat
(B) ecosystem
(C) niche
(D) biome
(E) None of the above/More than one of the above

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54. Solar energy is converted into ATP in
(A) mitochondria
(B) chloroplast
(C) ribosome
(D) peroxisome
(E) None of the above/ More than one of the above

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55. The by-product of photosynthesis is
(A) CO₂
(B) O₂
(C) energy
(D) sugar
(E) None of the above/More than one of the above

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56. Who was the Chief Justice of the Patna High Court who administered the path of office to Mr. Fagu Chauhan as the Governor of Bihar in July 2019?
(A) Hon. Mukesh Shah
(B) Hon. A. P. Sahi
(C) Hon. Rekha Manharlal Doshit
(D) Hon. Dipak Misra
(E) None of the above/More than one of the above

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57. What is the significance of “Bihar Diwas” that is celebrated on March 22 every year?
(A) On this day, the State Reorganization Commission created Bihar
(B) Bihar was carved out of United Provinces on this day in 1873
(C) To commemorate Bihar’s separation from Bengal Presidency in 1912
(D) To celebrate naming of Bihar in 12th century by Muslim rulers
(E) None of the above/More than one of the above

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58. Which one of the following States was never granted the Special Category Status (SCS) by the Central Government?
(A) Bihar
(B) Sikkim
(C) Himachal Pradesh
(D) Jammu and Kashmir
(E) None of the above/More than one of the above

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59. Yousuf Shah Chak, the last Muslim ruler of Kashmir valley who was exiled to Bihar by the Mughal cinperor Akbar, was buried in
(A) Patliputra
(B) Rajgir
(C) Munger
(D) Nalanda
(E) None of the above/More than one of the above

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60. What is the tagline of Bihar State Tourism Development Corporation?
(A) Bright Bihar
(B) Hum Sabka Bihar
(C) Blissful Bihar
(D) Bihar is the Best
(E) None of the above/More than one of the above

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