Exams - PAT

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The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of?

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

The molecular formula of phosphorous is?

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

The inert gases are ____ in water.

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

The method of concentrating the ore which makes use of the difference in density between ore and impurities is called?

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

The metal that is usually extracted from sea water is?

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

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