Elemental Knowledge
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Questions and Answers

Which of the following elements exists as a monoatomic gas under standard conditions?

  • Nitrogen
  • Bromine
  • Neon (correct)
  • Ozone

    • The atoms of an element contain an equal number of:

  • Protons and electrons
  • Neutrons
  • Neutrons and different number of protons
  • Protons and neutrons (correct)

    • Hydrogen may NOT be obtained by:

  • Interaction of zinc and hydrochloric acid
  • Interaction of copper and nitric acid (correct)
  • Electrolysis of water
  • Interaction of sodium and water

    • Which of the listed simple substances can participate in a chemical reaction only as an oxidant?

    <p>Fluorine</p> Signup and view all the answers

    After the interaction of ferric hydroxide (Fe(OH)3) and H2SO4, what is obtained?

    <p>Iron (III) sulphate and water</p> Signup and view all the answers

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