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International A LevelChemistryEdexcelExam Questions1. Structure, Bonding & Introduction to Organic Chemistry1.6 Ionic & Metallic Bonding & Structure

Ionic & Metallic Bonding & Structure (Edexcel International A Level Chemistry)

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1.6 Ionic & Metallic Bonding & Structure

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1.6 Ionic & Metallic Bonding & Structure

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1a1 mark

Element X is in Group 2 of the Periodic Table and element Y is in Group 7.
X and Y are not the symbols of the elements.

a)
What is the formula of the compound formed from X and Y?

  •  XY

  •  X2Y

  •  XY2

  •  X2Y2

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1b1 mark
b)
Under what conditions does the compound formed from X and Y conduct electricity?

  •  in the solid state and in the liquid state and in aqueous solution

  • in the solid state and in aqueous solution only

  •  in the solid state and in the liquid state only

  •  in the liquid state and in aqueous solution only

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21 mark

Which of these compounds would you expect to have the highest melting temperature?

  • NaCl

  • NaF

  • KCl

  • KF

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31 mark

A drop of an aqueous solution of green copper(II) chromate(VI) is placed in the centre of a strip of damp filter paper.
The ends of the filter paper are connected to a DC power supply.

What is observed after a few minutes?

  • a green colour has moved to the negative end

  • a green colour has moved to the positive end

  • a yellow colour has moved to the positive end and a blue colour to the negative end

  • a blue colour has moved to the positive end and a yellow colour to the negative end

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41 mark

Which of these isoelectronic ions has the smallest ionic radius?

  •  N3−

  •  F−

  • Na+

  • Al3+

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51 mark

Which of these has the greatest electrical conductivity?

  • SF6(g)

  • H2O(l)

  • Hg(l)

  • Na2O(s)

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61 mark

Which of these does not have a structure formed by a giant lattice of carbon atoms?

  • C60 fullerene

  • diamond

  • graphene

  • graphite

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11 mark

Which properties of a cation result in the greatest polarising power?

  • large radius and large charge

  • large radius and small charge

  • small radius and small charge

  • small radius and large charge

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21 mark

In which series are the ions in order of decreasing ionic radius?

  • Al3+  > Mg2+  > Na+

  •  Li+  > Na+  > K+

  • N3−  > O2−  > F−

  • O2−  > S2−  > Se2−

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31 mark

Which properties of an anion result in it being most easily polarised?

  • large radius and large charge

  • large radius and small charge

  • small radius and small charge

  • small radius and large charge

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41 mark

Which of these isoelectronic ions has the largest radius?

  • Na+

  • Mg2+

  • O2−

  • F−   

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51 mark

Which ion is the most polarisable?

  • Mg2+

  • Ca2+

  • Cl−

  • I−

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61 mark

Which of these ions has the greatest ionic radius?

  • N3-

  • F-

  • Na+

  • Al3+

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71 mark

Which of these ions has the greatest polarising power?

  • S2-

  • Cl-

  • Na+

  • Al3+

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