Exams - PAT

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The maximum number of covalent formed by nitrogen is?

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

The mass number of an atom is equal to?

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

Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be?

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

The National Chemical Laboratory is situated in?

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

The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in?

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

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