General Science Questions and Answers


General Knowledge

General Science Questions and Answers


    1)

    Brass gets discoloured in air because of the presence of which of the following gases in air?

  • A)Oxygen
  • B)Hydrogen sulphide
  • C)Carbon dioxide
  • D)Nitrogen
Answer: B

    2)

    Which of the following is a non metal that remains liquid at room temperature?

  • A)Phosphorous
  • B)Bromine
  • C)Chlorine
  • D)Helium
Answer: B

    3)

    Chlorophyll is a naturally occurring chelate compound in which central metal is

  • A)copper
  • B)magnesium
  • C)iron
  • D)calcium
Answer: B

    4)

    Which of the following is used in pencils?

  • A)Graphite
  • B)Silicon
  • C)Charcoal
  • D)Phosphorous
Answer: A

    5)

    Which of the following metals forms an amalgam with other metals?

  • A)Tin
  • B)Mercury
  • C)Lead
  • D)Zinc
Answer: B