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5 Written Questions

5 Matching Questions

  1. SiC (structure)
  2. 3 forms of C (carbon)
  3. α-quartz
  4. Si (structure)
  5. allotropes
  1. a different structural modifications of an element; bonding is different
  2. b
    tetrahedral network
  3. c graphite (2-D network solid)
    diamond (3-D network solid)
    coke (highly carbonaceous amorphic solid)
  4. d
    tetrahedral network
  5. e
    The most common form of silica (SiO₂) in nature.

5 Multiple Choice Questions

  1. Formed from α-quartz at 846K.

  2. tetrahedral network
  3. Network Solid (3-D)
  4. Network solid (3-D)
  5. Silicon dioxide, (aka) silica, (most commonly found in nature as) quartz

5 True/False Questions

  1. unit cell


  2. Graphite (type)2-D network solid


  3. polymorphsdifferent forms of crystal structure for the same solid material


  4. U (type)Network solid (3-D)


  5. Fe (type)Network solid (3-D)


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