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6. Bases react with acids in an endothermic neutralisation reaction?

  • False
  • True

7. Salts are produced when the hydrogen ions in acid are replaced by...

  • metal ions.
  • both of the above.
  • ammonium ions.

8. Oxidation and reduction always occur at the same time.

  • True
  • False

9. The First Ionisation Energy is the energy required to do what...?

  • remove one electron from the outer shell of every atom in a mole of gaseous atoms.
  • remove all the outer electrons from every atom in a mole of gaseous atoms.
  • turn one mole of 1+ ions into one mole of atoms.

10. How many electrons are there in 'n=3'

  • 6
  • 3
  • 18
  • 10

11. S-orbitals are the same shape as P-orbitals

  • False
  • True

12. In covalent bonding, the atoms involved always gain full outer shells.

  • False
  • True

13. In a dative covalent bond....

  • the bond only lasts for a short period of time.
  • the bonding pair of electrons is provided by one of the atoms.
  • neither atom has a full outer shell.

14. The bond angle of water is described as...

  • planar
  • non-linear
  • linear

15. L(one)P(air)-B(onding)P(air) repulsion is stronger than...

  • BP-BP repulsion
  • LP-LP repulsion

16. Van der Wall forces increases as ____ increases also.

  • number of electrons
  • neutron number
  • radioactivity

17. Graphite and Carbon differ in....

  • atom type.
  • electronegativity.
  • structure.
  • bonding type.

18. elements are arranged in the periodic table by...

  • atomic number.
  • atomic mass.

19. Group 2 elements...

  • form metallic bonds.
  • all of the above.
  • are good conductors.
  • form +2 cations.

20. Calcium Carbonate undergoes thermal decomposition to form...

  • Calcium Oxide and Carbon Dioxide.
  • Calcium Oxide and Carbon Monoxide.
  • Calcium and Carbon Dioxide.