Topic 4: Inorganic Chemistry and the Periodic Table

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  • Created by: LouiseG
  • Created on: 16-04-16 08:30

1. How does chlorine react with COLD AQUEOUS alkali?

  • Cl2 + H2O --> HCl + HClO
  • Cl2 + 2NaOH --> NaCl + NaClO + H2O
  • 3Cl2 + 6NaOH --> 5NaCl + NaClO3 + 3H2O
  • Cl2 + 2NaOH --> 2NaCl + H2O
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2. Why is Mg (carbonate and nitrate) the least thermally stable of the G2 elements ?

  • Magnesium has the smallest ionic radius as a 2+ cation so a greater polarising ability (more charge dense)
  • Magnesium isn't the least thermally stable, Barium is.
  • Magnesium forms radioactive carbonates and nitrates that are unstable and break down
  • Magnesium has the largest nuclear charge so can most easily pull apart the electron cloud

3. Which is the most electronegative element of Group 7?

  • Asatine
  • Flourine
  • Chlorine
  • Iodine

4. What is the main interaction that determines the boiling point of the halogens?

  • Covalent bonds within molecules
  • London forces between molecules
  • Hydrogen bonds between molecules
  • Permanent dipole forces between molecules

5. It forms a cream precipitate with silver nitrate solution; it's insoluble in aqueous ammonia but dissolves in concentrated ammonia. It is...

  • MgCl2
  • LiF
  • NaBr
  • KI

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