General Science Questions and Answers


General Knowledge

General Science Questions and Answers


    41)

    What is laughing gas?

  • A)Nitrous Oxide
  • B)Carbon monoxide
  • C)Sulphur dioxide
  • D)Hydrogen peroxide
Answer: A

    42)

    Actinides are the elements with atomic numbers from

  • A)97 to 104
  • B)101 to 115
  • C)89 to 103
  • D)36 from 43
Answer: C

    43)

    The two elements that are frequently used for making transistors are

  • A)boron and aluminium
  • B)silicon and germanium
  • C)iridium and tungsten
  • D)niobium and columbium
Answer: B

    44)

    The filament of an electric bulb is made of

  • A)tungsten
  • B)nichrome
  • C)graphite
  • D)iron
Answer: A

    45)

    Diamond is an allotropic form of

  • A)germanium
  • B)carbon
  • C)silicon
  • D)sulphur
Answer: B