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1. State the geometry, chemical formula and packing of cadmium iodide.

  • CdI2, !/2 Tet + CCP
  • CdI, 1/2 Oct alt + CCP
  • CdI2, 1/2 Oct alt + HCP
  • CdI2, Tet + HCP
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Other questions in this quiz

2. Name 3 ionic compounds that form HCP with octahedral holes.

  • TiO2, NiS, FeS
  • NiAs, KBr, TiS2
  • NiAs, NiS, FeS
  • NiAs, NiS, ZnS

3. Name 3 ionic compounds that form HCP with 1/2 tetrahedral holes.

  • TiS2, AlN, NH4F
  • ZnS, AlN, NH4F
  • ZnS, TiO2, NH4F
  • ZnS, NiAs, MgF2

4. Name an ionic compound that forms HCP with tetrahedral holes.

  • NiAs
  • Not known
  • ZnS
  • TiO2

5. Name the structure that is likely to have a radius ratio of about 0.574.

  • NaCl or Rutile
  • CsCl or Fluorite
  • Rutile or Zinc Blende
  • Fluorite or CsCl

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